Echinastone.com is an award winning online store operated by China Stone Co., Ltd - a leading global manufacturer of high-precision cut natural gemstones. The world's most admired luxury jewellery and watch brands, independent fine jewellers and watch manufactures, rely on China Stone’s comprehensive range of melee sized calibrated natural coloured stones.Echinastone.com allows independent fine jewellers and watch manufactures to browse, search and buy over 8 million pre-packed and certified natural colour stones graded to a consistent colour, clarity, size and shape, within narrow persistent tolerances, on any device including mobile phones. An online inventory is arranged by gemstone variety and colour, and offers high-class photographs and specifications for each pre-packed calibrated lot of gemstones, including price, origin, treatment disclosure, weight, size measurements, shape and cut specifications, clarity and colour grades, calibration grading and methodology, and available colour variation range for each particular lot.All offered gemstones are perfectly cut, graded and calibrated, and sold in five different sized multi-functional purpose boxes featuring a clear plastic top with twist-lock tabs for secure storage. Each box is accompanied by a numbered Certificate of Authenticity, and user friendly labelling and disclosures based on variations in quality, colour, origin and treatments or enhancements.

China Stone Co., Ltd is recognised as a leading global manufacturer of high-precision cut natural gemstones. The world's most admired luxury jewellery and watch brands, independent fine jewellers and watch manufactures, rely on China Stone’s comprehensive range of melee sized calibrated natural coloured stones in a range from 0.50mm to 10.00mm, and in precise increments of 0.05mm, with real-time availability of over 20 million natural colour stones graded to a consistent colour, clarity, size and shape, within narrow persistent tolerances.China Stone is headquartered in Bangkok, Thailand with offices across the U.S., China, and South East Asia.