Crystal Glass Flat Back Low Round Cabochon Cabs 4mm-60mm

These are low dome glass cabochons. 

4mm Thickness: 2mm
6mm Thickness: 2mm
8mm Thickness: 2.5mm
10mm Thickness: 4mm
12mm Thickness: 4mm
14mm Thickness: 4.5mm
15mm Thickness: 4.5mm
16mm Thickness: 5mm
18mm Thickness: 5mm
20mm Thickness: 5mm
25mm Thickness: 5mm
28mm Thickness: 5.5mm
30mm Thickness: 6mm
35mm Thickness: 8mm
40mm Thickness: 8.5mm
50mm Thickness: 9mm
58mm Thickness: 9.5mm
60mm Thickness: 9.5mm