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These sieves are the simple method for sorting rough or polished diamonds according to size. Precision-drilled sieves fit inside the chrome plated case and screens diamonds by size. The bottom lid of the case catches the diamonds as they fall through the sieves. Sizes are marked on each plate for easy identification. Each diamond sieve come in its own zippered leather pouch and a reading chart showing plate size of diamonds per carat, weight and size in millimeters.
23 Plates : 000, 1, 2, 3...20 31 Plates : 1, 1.5, 2, 2.5, 3...16mm 42 Plates : 000, 1, 1.5, 2, 2.5...19.5, 20 43 Plates : 000, 1, 2, 3...40 |