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Showing posts with label Gübelin Gemstone Rating. Show all posts
Showing posts with label Gübelin Gemstone Rating. Show all posts

Thursday, November 19, 2020

Gübelin Gemstone Rating

The Gubelin Gem Lab has introduced Gubelin Gemstone Rating system based on points, inspired by the system to express the quality of a wine's vintage. The Gubelin Gemstone Rating looks at three factors: quality, rarity and salience. If the consumers and the trade feel it's easy to convey a good story, the new rating system might work.


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