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
It is preferable when viewing a stone with a loupe that you have a clear white background behind the stone. You will not pick up any reflection or interference from a clear white desk pad.
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