1.54ct Round Cabochon Opal 10x2.4mm Bergeon Staking Set ISO sizes 41 to 76

ISO sizes 41 to 76

5x 240 ~ 260mm 2

3 buttons to operate

For efficient removal of hardened casting debris

1.54ct Round Cabochon Opal 10x2.4mm Bergeon Staking Set ISO sizes 41 to 76Opal 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