4.74ct Triangular Cabochon Opal 23x19mm Bocks Swiss Lapping Machine Bergeon 1492G

Bergeon 1492G

Spring Bar Tool

please allow the color of packing box may be changed

gypsum board

Dimensions: 85 x 30 x 30cm (length x width x height)

4.74ct Triangular Cabochon Opal 23x19mm Bocks Swiss Lapping Machine Bergeon 1492GOpal 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