0.85ct Oval Cabochon Opal 8.9x4.7mm Bergeon 2462 Graver Sharpener

0.85ct Oval Cabochon Opal 8.9x4.7mm Bergeon 2462 Graver SharpenerOpal is probably the most famous phenomenal stone displaying the unparalleled play of colour, a rainbow coloured kaleidoscopic effect. The name opal derives from the word 'opalus' given by the Romans, which is Latin for 'precious stone'. They can be fragile which makes it more suitable for jewellery such as necklaces, brooches and earrings that are less likely to be knocked. Opal is the birthstone for October. Mohs Scale of Hardness: 5. 5 6. 5

With slide

This meter

Graver - Valorbe Lozenge 1

Avoids damaging the barrel’s profile

Designed to hold half & quarter ring shanks in place during soldering and repairs

12 & 14 gauge)

105 x 280 x 9 Automatic

Steel Material : Chrome Vanadium Steel

The sliding gauge is marked in cm and the dial is graduated as follows

The diameter of the lens has been specifically chosen for the power of the magnification

--Double Head Test Pencil

guessing on the karat or value of the gold