Product Catalog
Subcategories
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Lab Grown Diamonds
Lab-grown diamonds, also known as synthetic diamonds, cultivated diamonds, or man-made diamonds, are diamonds produced in a laboratory rather than being mined from the Earth. These diamonds have the same physical, chemical, and optical properties as natural diamonds, as they are both composed of carbon atoms arranged in a crystal lattice structure.
The process of creating lab-grown diamonds typically involves one of two main methods:
1. **High Pressure High Temperature (HPHT):** This method replicates the conditions under which natural diamonds form deep within the Earth. Carbon is subjected to high pressure and high temperature, causing it to crystallize into diamond over time.
2. **Chemical Vapor Deposition (CVD):** In this method, a carbon-rich gas, such as methane, is introduced into a chamber along with hydrogen. Under controlled conditions, the carbon atoms are deposited onto a substrate, forming a diamond crystal layer.
Lab-grown diamonds have gained popularity for several reasons:
- **Ethical and Environmental Impact:** Traditional diamond mining can have ethical concerns, including human rights issues and environmental damage. Lab-grown diamonds are often considered a more ethical and environmentally friendly alternative.
- **Cost:** Lab-grown diamonds can be more cost-effective to produce than mined diamonds, leading to potentially lower prices for consumers.
- **Purity and Control:** Diamond manufacturers can have precise control over the growth conditions in a lab, leading to diamonds with fewer impurities or inclusions. This can result in stones with high clarity.
- **Innovation in Design:** Lab-grown diamonds can be created in various colors, and their production allows for innovations in diamond design.
It's important to note that while lab-grown diamonds share the same physical characteristics as natural diamonds, they are often priced differently in the market. Some consumers prefer the uniqueness and rarity associated with natural diamonds, while others appreciate the ethical and environmental aspects of lab-grown diamonds.
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Lab-grown coloured...
Laboratory-grown colored gemstones are created through a process that simulates the natural conditions in which gemstones form. These gemstones are chemically and physically identical to their natural counterparts, and can be just as beautiful and valuable.
One of the most common methods of growing colored gemstones is the flux method, which involves melting a mixture of chemicals and then slowly cooling it to allow the crystals to form. This method can produce gemstones in a wide range of colors, including ruby, sapphire, and emerald.
Another method is the hydrothermal method, which uses high temperatures and pressures to grow gemstones in a solution. This method is often used to grow quartz and other gemstones.
The quality of laboratory-grown colored gemstones depends on a number of factors, including the purity of the starting materials, the growth conditions, and the post-growth processing. Gemstones that are grown under carefully controlled conditions and undergo minimal processing can be of very high quality, with colors and clarity that are comparable to natural gemstones.
It's important to note that while laboratory-grown colored gemstones are real gemstones, they are not the same as synthetic gemstones. Synthetic gemstones are created through chemical processes that do not occur in nature, and they often have different physical and chemical properties than natural or laboratory-grown gemstones.
When purchasing colored gemstones, it's important to work with a reputable dealer who can provide accurate information about the origin and quality of the stones. Additionally, having the stones appraised by a professional gemologist can help ensure their authenticity and value.
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Moissanite
Moissanite is a gemstone that is often used as a diamond alternative in jewelry. It is composed of silicon carbide and was first discovered in 1893 by French scientist Henri Moissan, who initially mistook it for diamonds. While moissanite shares some visual similarities with diamonds, there are key differences.
Here are some characteristics of moissanite:
1. **Hardness:** Moissanite is a very hard mineral, scoring 9.25 on the Mohs scale of hardness. While diamonds are slightly harder, moissanite is durable and suitable for everyday wear.
2. **Brilliance and Fire:** Moissanite exhibits exceptional brilliance and fire, which refers to its ability to disperse light into flashes of color. Some people find that moissanite displays more fire than diamonds.
3. **Cost:** Moissanite is generally more affordable than diamonds. It is a popular choice for individuals seeking a sparkling and durable gemstone at a lower price point.
4. **Color:** Moissanite is typically near-colorless, but some stones may exhibit a slight yellow or green tint. High-quality moissanite is usually graded as colorless or near-colorless.
5. **Ethical Considerations:** Unlike diamonds, which can sometimes be associated with ethical concerns related to mining practices, moissanite is typically produced in a laboratory setting. This can be appealing to individuals looking for a more environmentally friendly and socially responsible option.
It's important to note that while moissanite shares some optical characteristics with diamonds, they are distinct gemstones. Moissanite's popularity has grown as an alternative to diamonds due to its beauty, durability, and affordability. When purchasing moissanite, consumers should be aware of its unique qualities and make informed choices based on their preferences and budget.
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Corundum
Synthetic Corundum - According to different sources, corundum can be divided into two types: natural corundum and artificial corundum. Natural corundum is a corundum mineral, while artificial corundum is artificially synthesized. The main differences between the two are:
**Different formation methods:**
Artificial corundum is a synthetic alumina material prepared under high temperature and high pressure conditions. Natural corundum is formed naturally and after geological processes, and is commonly found in deserts or giant rocks.
**Different chemical compositions:**
The main components of artificial corundum and natural corundum are aluminum oxide. Natural corundum is affected by various chemical elements during the formation process and has more impurities, resulting in different colors and chemical compositions; artificial corundum can have a chemical composition of nearly 100% % alumina, there are also products such as brown corundum and black corundum containing impurities.
Corundum is a rock-forming mineral formed from the crystallization of aluminum oxide (Al2O3). Corundum often contains small amounts of iron, titanium, vanadium and chromium ions. Pure aluminum oxide crystals are colorless, but corundum appears in different colors due to different impurities.
Among gem-grade corundum, corundum mixed with metallic chromium is bright red in color and is generally called ruby; while blue or colorless corundum is generally classified as sapphire. The English name "corundum" of corundum originates from "Kurundam" in "Tamil", which originates from Kuruvinda in "Sanskrit", which means "ruby".
**synthetic corundum**
In 1837, Marc Antoine Gaudin used a small amount of chromium as a pigment and melted aluminum oxide at high temperature, thus obtaining synthetic corundum for the first time. In 1847, Jacques-Joseph Hébelmont obtained white synthetic corundum by melting aluminum oxide in boric acid. In 1877, Frimy and Auguste Verneuil obtained artificial rubies by sintering barium fluoride, aluminum oxide and a small amount of chromium at a high temperature of more than 2,000 degrees. In 1903 Verneuil claimed that he could produce rubies on a commercial scale using this method.
**Specifications:**
**Crystal structure: ** It belongs to the trigonal crystal system.
**Hardness: ** Mohs hardness of 9, second only to diamond, is also a very hard substance in nature; like diamond, its hardness also has anisotropy.
**Density:** The density is relatively high, 3.95~4.10g/cm3.
**Cleavage and cleavage:** No cleavage, but cleavage in four different directions. Because they are often cracked, red and sapphire are also afraid of impact.
**Luster:** Glass luster to quasi-adamantine luster, weaker than diamond.
**Refractive index and birefringence:** Corundum is a birefringent mineral, also called optical heterogeneity: the maximum refractive index is 1.770, the minimum is 1.762, and the birefringence is not large, only 0.008.
**Dichroism:** Corundum is a heterogeneous mineral with "dichroism" (also called pleochroism). The pleochroism of corundum is medium, with rubies showing purple-red/orange-red and sapphires showing purple-blue/green-blue. Differences in color can be seen with a polarizing microscope or a simple "dichroic mirror", a small instrument.
**Fluorescence:** Ruby can fluoresce red under ultraviolet light, which can be used to distinguish red garnet (non-fluorescent). Sapphire usually does not emit light.
**Advantages:**
Jewelry use: Colorful and transparent or translucent crystals can be used as gemstones. Both ruby and sapphire are corundum minerals. In addition to the starlight effect, only translucent-transparent and brightly colored corundum can be used as gemstones. The red ones are called rubies, while the other shades of corundum are commercially known as sapphires.
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Natural Ruby
Natural rubies are extremely precious gemstone varieties among corundum minerals.
In terms of color performance, its typical hue is bright red, ranging from light pink to deep crimson. Among them, the pigeon blood red color is the rarest and most uncommon. Such a bright and rich red color is attributed to the chromium element contained within it. The amount and distribution of chromium content directly affect the vividness and uniformity of the ruby's color.
In terms of hardness, the Mohs hardness of rubies reaches 9, second only to diamonds. This characteristic endows it with excellent wear resistance and long durability. At the same time, its high hardness also makes rubies require exquisite craftsmanship and special tools during processing and setting.
In terms of transparency, superior natural rubies usually have high transparency and are relatively pure inside. However, most rubies will have a certain amount of inclusions, fractures and other features. The types, sizes and distributions of these inclusions can sometimes be the basis for judging the origin and quality of rubies.
In terms of luster presentation, it shows a strong glass luster or even subadamantine luster, shining and dazzling under the illumination of light.
From the perspective of optical characteristics, rubies have significant dichroism. When observed from different directions, one may notice subtle differences in color tones. In addition, rubies also have obvious fluorescence and will emit a unique light under a specific light source.
In terms of physical properties, rubies have a large density, a high specific gravity, and good thermal conductivity and electrical conductivity.
Due to its rarity, charming color, excellent physical characteristics and unique optical performance, natural rubies are highly respected and cherished in the jewelry market.
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Natural Sapphire
Natural sapphires belong to the corundum mineral group and are one of the highly cherished gemstones.
In terms of color display, their hues are rich and diverse, covering a range from light and pale blue to deep indigo. Among them, Cornflower Blue and Royal Blue are the most famous and rare. The formation of sapphire's color is related to elements such as iron and titanium contained within. The content and distribution of these elements directly affect the depth and tone of the color.
Regarding hardness, the Mohs hardness of sapphires also reaches 9, possessing excellent wear resistance and long-lasting durability. The high hardness makes it equally necessary to have superb craftsmanship and specific tools during processing and setting.
In terms of transparency, high-quality natural sapphires usually have good transparency and are relatively pure inside. However, most sapphires will also have certain inclusions and fractures and other features. The types, sizes and distributions of these inclusions can sometimes be the basis for judging the origin and quality of sapphires.
In terms of luster presentation, it shows a strong glass luster or even subadamantine luster, shining and dazzling under the illumination of light.
From the perspective of optical characteristics, sapphires have obvious dichroism. When observed from different directions, subtle differences in color tones can be detected. In addition, some sapphires also have a unique star effect, making them even more unique and charming.
In terms of physical properties, sapphires have a large density, a high specific gravity, and good thermal conductivity and electrical conductivity.
Due to their rarity and preciousness, charming colors, excellent physical characteristics and unique optical performances, natural sapphires are deeply loved and valued in the jewelry market.
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Nanosital
Nanositall is a kind of artificial gemstone and has the following characteristics:
• Rich colors: It has a wide range of colors and can imitate the colors of almost all gemstones.
• Stable properties: Made from crystallized glass, it is a polycrystalline material with specific chemical composition and optical transparency. Compared with glass, the properties of nanositall are more stable and do not change color even at temperatures above 1500°C, so it can be used for wax setting.
• High hardness: Its hardness is relatively high, usually around 8.
• Good heat resistance: The heat resistance of nanositall is better than that of ordinary glass.
• Synthesis method: The hydrothermal method is commonly used for synthesis. Under hydrothermal conditions at temperatures ranging from 100 to 1000°C and pressures ranging from 1 MPa to 1 GPa, chemical reactions of substances in aqueous solutions are utilized for synthesis.
Currently, nanositall is mainly produced in Russia. There are various colors of nanositall available in the market, and some varieties even have color-change effects. When purchasing and using nanositall, it is recommended to choose regular channels and make choices based on your own needs and preferences.
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Jewelry Customization
Instructions and Explanations on Customized Accessories
I. What is Customized Accessories
Customized accessories refer to the service of creating unique and personalized jewelry based on the specific needs, preferences, and design concepts of customers. This means that you are no longer limited to the ready-made styles available in the market but can own exclusive accessories that fully comply with your personal style and desires.
II. Customization Process
1. Demand Communication: You have an initial communication with our designers to elaborate your expectations for the accessories, including aspects such as style, material, theme, size, and budget.
2. Design Proposals: Based on your requirements, the designers will provide you with 1-3 initial design proposals and present them to you through pictures, sketches, or 3D models.
3. Proposal Modification: You offer your modification opinions and suggestions on the design proposals, and the designers will adjust and refine them according to your feedback until you are satisfied.
4. Finalize the Proposal: When you finally confirm the design proposal, we will calculate the accurate price and production time for you.
5. Production: Our artisan team will meticulously produce your accessories in accordance with the confirmed design proposal. During the production process, we will strictly control the quality to ensure that every detail meets your expectations.
6. Delivery and Acceptance: Once the accessories are completed, we will promptly notify you for acceptance. If you have any dissatisfaction with the accessories, we will provide free modification and adjustment services.
III. Advantages of Customization
1. Unique: Customized accessories are made exclusively for you and will not be duplicated with others', fully demonstrating your personality and taste.
2. Emotional Value: Customized accessories can incorporate your special emotions, stories, or commemorative meanings, making them precious items with profound emotional value.
3. Quality Assurance: We use high-quality materials and exquisite craftsmanship in the customization process to ensure the quality and durability of the accessories.
4. Perfect Fit: Customized according to your size and requirements, the accessories can better fit your body and style, and be more comfortable and aesthetic when worn.
IV. Material Options
We offer a variety of materials for you to choose from, including but not limited to:
1. Precious Metals: Such as gold (pure gold, K gold), platinum, silver, etc., which have high value and retention value.
2. Gemstones: Such as diamonds, rubies, sapphires, emeralds, pearls, etc., adding brilliance and unique charm to the accessories.
3. Semi-precious Stones: Such as tourmaline, garnet, crystal, agate, etc., which are relatively more affordable while still presenting beautiful colors and textures.
4. Other Materials: Such as leather, wood, ceramics, glass, etc., providing you with more creative and personalized choices.
V. Precautions
1. Customized accessories require a certain production time. Please plan your time in advance to avoid delays in your use.
2. Before confirming the design proposal, please carefully consider and confirm every detail to avoid frequent modifications during the production process, which may affect the production progress and increase costs.
3. Since customized accessories are made based on your personal needs, generally, they are not subject to return or exchange services. However, in case of quality issues or non-compliance with the agreed terms, we will provide you with corresponding solutions.
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Professional services...
Considerations for Optimising Gemstones
In the field of gemstones, natural gemstone rough stones often have various flaws, such as obvious inclusions, uneven color distribution, poor transparency, and the presence of cleavage and fissures. The optimization treatment service of natural gemstone rough stones that we provide is an exclusive featured business and special service, and it has many crucial and important functions.
Firstly, the optimization can significantly enhance the beauty of the gemstone. Through our unique and appropriate treatment methods, such as heat treatment, oil immersion, irradiation, etc., the color of the gemstone can be significantly improved, making it more vivid, uniform and charming, thereby greatly enhancing the visual appeal and charm of the gemstone. This improvement in color is called "color enhancement" in gemmology.
Secondly, the optimization is conducive to improving the transparency of the gemstone. Using our unique methods such as acid washing and glue injection to remove internal impurities and inclusions allows light to penetrate the gemstone more smoothly, significantly enhancing its luster and sparkle effect, making the gemstone shine more dazzlingly. This process is called "clarity optimization" in gemmology.
Thirdly, the optimization can effectively improve the durability of the gemstone. Some treatment methods, such as fissure filling, can fill the tiny fissures on the surface of the gemstone, significantly reducing the possibility of damage during daily wearing and use, and greatly extending the service life of the gemstone. This treatment is an important consideration factor in gemstone identification.
In addition, the natural gemstone rough stones that have been professionally optimized by us usually have a significantly higher value and acceptance in the market. The more attractive appearance and better quality make them more favored by consumers, effectively promoting the circulation and trading of gemstones in the market. However, it should be noted that different optimization methods have different degrees of influence on the value of gemstones, and in gemstone trading, the situation of optimization treatment needs to be truthfully informed to consumers.
In conclusion, our optimization treatment service for natural gemstone rough stones, as an exclusive featured business, plays a crucial role in improving the beauty, quality, durability and market value of gemstones.
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Cubic Zirconia
Cubic zirconia (CZ) is a synthetic gemstone that closely resembles a diamond in appearance but is more affordable. It is made from zirconium dioxide crystals and can be colorless or have various colors, depending on the addition of certain metal oxides during the manufacturing process.
**Availability:**
Cubic zirconia is widely available and commonly used as a diamond substitute in jewelry. It can be found in various jewelry stores, both online and offline, and is often used in engagement rings, earrings, necklaces, and other types of jewelry.
**Specifications:**
1. **Chemical Composition:** Cubic zirconia is composed of zirconium dioxide (ZrO2).
2. **Hardness:** CZ has a hardness of approximately 8-8.5 on the Mohs scale, making it relatively durable and suitable for everyday wear.
3. **Density:** It has a density of about 5.6 to 6.0 g/cm³.
4. **Refractive Index:** The refractive index of cubic zirconia is high, similar to that of diamonds, resulting in excellent brilliance and sparkle.
5. **Color:** CZ can be colorless, but it is often produced in various colors such as pink, yellow, blue, and green. The color is achieved by adding specific metal oxides during the manufacturing process.
6. **Cut:** Cubic zirconia is usually cut into various shapes, including round, princess, oval, and more. The cut significantly affects its brilliance.
7. **Clarity:** Unlike natural gemstones, CZ is typically free of inclusions and flaws, contributing to its clarity and brilliance.
**Advantages:**
1. **Affordability:** Cubic zirconia is more affordable than diamonds, making it an attractive option for those on a budget.
2. **Brilliance:** CZ exhibits a high level of brilliance and fire due to its excellent light dispersion.
3. **Availability of Colors:** It can be produced in a wide range of colors, allowing for versatile jewelry designs.
**Limitations:**
1. **Durability:** While durable, cubic zirconia is not as hard as diamonds, making it more prone to scratches over time.
2. **Authenticity:** Some buyers prefer natural gemstones, and cubic zirconia lacks the rarity and authenticity associated with natural diamonds.
In summary, cubic zirconia is a popular and affordable alternative to diamonds with excellent brilliance, various color options, and widespread availability in the jewelry market.