8.75ct Oval Cabochon Opal 19x14.5mm Baume & Mercier Opening Tool A*F 167.781 Dimensions: 235mm x 350mm x

Dimensions: 235mm x 350mm x 1mm

Contents: Adjustable jaw holder

4 Drilled stakes: Ø8 x 3

50mm to Ø3

8.75ct Oval Cabochon Opal 19x14.5mm Baume & Mercier Opening Tool A*F 167.781 Dimensions: 235mm x 350mm xOpal 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