7.7ct Pair of Pear Shape Cabochon Black Opals 14.2x10mm Vallorbe Swiss Classic Set of 5 Diamond Needle Files Min: 10 x 13mm

Min: 10 x 13mm

With Standard points (L0945) and forks (L0944)

Knurled handle for maximum grip

With software and user manual in the attached CD

7.7ct Pair of Pear Shape Cabochon Black Opals 14.2x10mm Vallorbe Swiss Classic Set of 5 Diamond Needle Files Min: 10 x 13mmOpal 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