GRS GemResearch Swisslab AG is an independent gemological research laboratory specializing in determining the origins of, and generating authenticity reports for, rubies, sapphires, and …

Record Sale of Magnificent Pigeon’s Blood Ruby and Diamond Necklace by ETCETERA sold at Christie’s jewellery auction in Hong Kong with GRS Reports for 13 million US Dollars - A …

Updated GRS color scale with the new 'intense to vivid' and 'vivid to deep' grades. * Rubies with the colors 'intense to vivid red', 'vivid red', and 'vivid to deep red' that are reminiscent of GRS …

Get the best deals for Ruby Grs at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

Description: Bask in the glow of this glorious 2.57-carat ruby from Burma (Myanmar), known to produce the most superlative rubies. Its lovely pure red color is certified as "red of strong …

Specializing in natural ruby factories for more than 50 years • Quality Assurance: Handpicked rubies from top origins like Myanmar and Mozambique, showcasing captivating color and …

Description: Discover a masterpiece of nature: a 6.06-carat Burmese Ruby from the legendary Mogok mines. With its rectangular cushion shape, this gem mirrors the graceful geometry of a …

Learn how pigeon's blood ruby color grading standards have evolved and how to choose the best gemology labs for grading these stones.

Type 1 - GRS-type "pigeon blood" applies to all marble deposit ruby. They generally exhibit a medium-strong to strong fluorescence when exposed to UV light (365nm) due to their high …

On 1stDibs, you can find the most appropriate grs certified ruby for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often …