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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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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Green Jadeite Types: Ganqing and Tielongsheng
Most jadeite buyers look for vivid green. Jadeite that is both intensely green and highly translucent, however, usually comes at a much…
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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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Is Guatemalan Jadeite Worth Buying? The Truth About a Burmese Alternative
In our previous article, “Does Russian Jadeite Qualify for Certification? The Truth About Jadeite Certification and Origins,” we explored how mineral composition…
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How to Tell Dyed Magnesite from Natural Turquoise
Turquoise has been treasured for more than 5,000 years and remains one of the most admired gemstones across cultures. From ancient Egypt…
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Kunzite: Tiffany’s Darling, Taylor’s Choice, and the Gem That Shuns the Sun
The discovery of kunzite added a stunning contender to the lavender gem family. It stands out from classic amethyst with a delicate,…
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Gemstones of Heilongjiang: Garnet, Sapphires, Rubies & Xunke Agate | Chinese Gems Series
In this installment of our Gemstones of China, we return to Northeast China to uncover the hidden geological treasures of Heilongjiang Province….
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Does Purple Hetian Jade Truly Exist? Unveiling the Truth Behind “Taro Purple” Nephrite
Not long ago, a client walked into our studio with a strand of beads that immediately caught my eye—a striking, creamy “taro…
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What Does “Oiliness” Mean in Hetian Jade? The Most Misunderstood Quality Explained
If you’ve spent any time exploring Hetian jade, you’ve likely encountered the term “oiliness” (you xing). It’s one of the most frequently…
