Kashmir “Cornflower Blue” Sapphire
Unlike diamonds, sapphires can show a strong connection between origin and market value. Sapphires from different regions can vary in color, inclusions,…
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Beryllium Diffusion Treatment in Sapphire: Color, Value, and Disclosure
Two years ago, a friend traveled to Thailand on business. Through a local intermediary, he purchased a yellow sapphire ring from a…
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Should You Buy a Diamond Ring With or Without Fluorescence?
When buying a diamond ring or other diamond jewelry, many consumers face the same question: Should you choose a diamond with fluorescence…
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How to Use a UV Light for Gemstone Testing: Fluorescence, Wavelengths, and Common Mistakes
For most jewelry and jade enthusiasts, a UV light is a familiar and useful auxiliary tool for gemstone testing. It mainly helps…
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Ruby and Sapphire Diffusion Treatment
Ruby and sapphire have long been important colored gemstones in the market. Natural gemstones often contain inclusions, fractures, or uneven color. As…
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Hetian Jade Nail-Shaped Marks: What They Reveal About Seed Jade
In our previous article, How to Identify Hetian Seed Jade Through Its Skin Color, we looked at the skin color of Hetian…
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Black Magnetic Stone Jewelry: What Is “Heidan” Stone Really Made Of?
The jewelry trade uses many names for stones and materials that sound natural, rare, or even therapeutic. One example is “Heidan stone,”…
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How to Identify Hetian Seed Jade Through Its Skin Color
Buyers often ask us to check whether a piece of Hetian seed jade is genuine. We see these questions both online and…
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Cinnabar Jewelry: The Mineral Truth Behind Natural Cinnabar and Market Imitations
When it comes to red jewelry, ruby, red coral, and Nanhong agate may come to mind first. In recent years, however, Cinnabar…
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3 Lesser-Known Alternatives to Ruby
In our previous article, Jewelry Alternatives: What’s a Smart Buy and What’s a Total Scam?, we shared how we found a 6-carat-plus…
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Hetian Jade Flaws and Value: How Natural Characteristics Affect Price (Part 2)
In Part 1 of our guide to Hetian jade imperfections and their impact on value, we explored how four common natural characteristics—cotton…
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Hetian Jade Flaws and Value: How Natural Characteristics Affect Price (Part 1)
In our previous introduction to Hetian jade basics, we briefly discussed how natural characteristics can influence a stone’s worth. In this guide…
