N nvn2003 Rough_Rock Joined May 27, 2003 Messages 1 May 27, 2003 #1 Does anyone know how big in cts. is 3mm diamond? Thanks, nvn
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DiamondExpert Brilliant_Rock Joined Jan 15, 2003 Messages 1,245 May 27, 2003 #2 For a well cut round stone, it would be about 0.10ct.