China Stone

Visit www.thechinastone.com for precision machine-cut natural gemstones graded to a consistent color and size within narrow persistent tolerances.

With over 20 years of experience, over 10 million stones in stock, facilities in Thailand, China and a global network of Authorized Dealers, China Stone is the world-leading provider of precision machine-cut natural gemstones to the major fine jewelry manufacturers, luxury industry professionals, jewelry designers and watchmakers.

07/08/2026

Peridot is the vibrant green birthstone for August, historically called the "gem of the sun" and believed to bring peace and good fortune. This gem-quality variety of the mineral olivine is unique for its idiochromatic coloration, meaning its hue is an inherent part of its chemical structure. Its shades range from yellowish-green to deep olive, with the specific color depth determined by the concentration of iron within the crystal.

03/08/2026

A close-up of the transformation process creating perfectly harmonized gemstone color sets. This demanding work leaves zero room for error, as even the slightest variation in shade can instantly disrupt the color uniformity.

28/07/2026

: June 2026 sales dynamics report of precision-cut calibrated gemstones at China Stone. Research that brings transparency to the industry and helps you better understand colored gemstones market.

https://www.echinastone.com/

24/07/2026

African rubies are redefining the red spectrum. They boast an incredibly vibrant, saturated hue that ranges from rich, deep crimson to an intense, glowing scarlet. Our precision-cut calibrated rubies come in three color ranges, from RB100 to RB300.

For more details https://www.echinastone.com/products/search-results/3003332/

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20/07/2026

We focus on absolute symmetry. Every facet junction meets flawlessly at microscopic intersection points, ensuring perfect balance and razor-sharp geometric alignment. Our strict quality control guarantees mathematical uniformity in size, depth, and proportion.

10/07/2026

Orange sapphire sorting process. Our proprietary grading system categorizes yellow-orange sapphires into four ranges: YC, YB, YS, and YR.
For more details: https://www.echinastone.com/products/search-results/2959092/20/0

05/07/2026

PRODUCT SPOTLIGHT: Perfectly calibrated princess square lot of 64 pieces high-precision cut natural very light reddish purple sapphire gemstones from Africa in 2.00mm size features an exceptional princess cut and finish.
For more details https://www.echinastone.com/products/details/2946336/20/0/102743PSQ600200EC.html

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$Tsavorite is renowned for its exceptional vivid green saturation, remarkable clarity, and high refractive index. High-gr...$

02/07/2026

Tsavorite is renowned for its exceptional vivid green saturation, remarkable clarity, and high refractive index. High-grade tsavorite garnet rough offers excellent yield potential for custom faceting and high-end jewelry design.

Explore the brilliance of our precision-cut calibrated tsavorites at https://www.echinastone.com/products/search-results/2937380/

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25/06/2026

Our high-precision, calibrated cabochon gemstones feature an exceptional cut and finish for absolute uniformity in size and shape. Sleek, elegant, and refined, their smooth surfaces beautifully enhance the natural color and unique character of every stone.

For more details https://www.echinastone.com/products/search-results/2914939/

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20/06/2026

: An Art Deco–inspired earring design layout masterfully balances symmetry and vibrant contrast. It features a radiant wheel of multicolored sapphires and vivid green tsavorites, anchored by fiery yellow sapphires. The concentric arrangement creates depth, movement, and a captivating play of color.