Diamond Guide References
- Diamond-Cut.com.au
- Gemology Center of MSU, Octonus Software
- Diamonds.net - Rapaport Diamond Trading Network
- Diamonds, American Museum of Natural History
- Sarin Technologies
- D. Atlas, Accredited Gem Appraisers, Cut grading charts
- Whiteflash.com
- GIA Gem Trade Lab
- AGS Laboratories
- HRD - Antwerp Diamond High Council
- A Diamond Is Forever - De Beers Diamond Promotional Website
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