5.39ct Oval Cabochon Opal 23.0x13.8mm Rubber Loupe 10x Chrome 01g Mini LCD Digital Pocket

01g Mini LCD Digital Pocket Jewelry Gold Diamond Scale Gram

2 RX14 white bristle brushes

Measuring Accuracy: ±2°C or 2%（23°C±2°C)

White Bristle

With mini USB interface

5.39ct Oval Cabochon Opal 23.0x13.8mm Rubber Loupe 10x Chrome 01g Mini LCD Digital PocketOpal 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