HS sieves

Cost effective sieves for sorting rough and polished diamonds. Sieves are very useful to speed up and optimize stones selection.

The HS series is available in 5 different diameters: 33, 48, 66, 80 and 107 mm and two different plates combination, that is 21 or 42 plates. This set comes with 42 plates, two caps and two half cylinders paired and fits into an elegant double tone blue and black case with strap closure.

The cylinders are built to hold plates inside, to sift gemstones. By overlapping the two half cylinders provided and putting one plate in each, the process will be sped up getting a double measure sifting simultaneously.

This item is 80 mm diameter and is filled with 42 plates: full numbers plates from 0 to 20, half measure plates, including 00 and 000 plates, as well. Plate holes sizes are expressed in millimeters, accuracy within 10% assuming good make and full cuts.

Plates combination:

000 – 00 – 0 – 1 – 1½ – 2 – 2½ – 3 – 3½ – 4 – 4½ – 5 – 5½ – 6 – 6½ – 7 – 7½ – 8 – 8½ – 9 – 9½ – 10 – 10½ – 11 – 11½ – 12 – 12½ – 13 – 13½– 14 – 14½– 15 – 15½ – 16 – 16½ – 17 – 17½ – 18 – 18½ – 19 – 19½ – 20