Diamonds andDiamond Grading Course
Diamondsfor the Retail Jeweller Course
Metals used in Jewellery Course
Essentials of Coloured Stones Course
Coloured StoneGrading Course
Coloured DiamondGrading Course
The GIA iD100® distinguishes natural diamonds from laboratory-grown diamonds and diamond simulants. It rapidly and accurately screens loose and mounted diamonds as small as .005 ct in <2 seconds.
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