Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Each diamond over 0.30 carats is accompanied by a diamond-grading certificate from the Gemological Institute of America, or Antwerp-based Diamond High Council HRD, or the International Gemological Institute.
Source: https://www.ft.com/content/40bceee4-6c81-45f4-8bca-ce391b7be408