6.91ct Drop Shape Opal 20x12.3mm synthetic diamond screener Must be used when rhodium

Must be used when rhodium plating

a Centre ‘O’ ring (M33544)

Straight (135mm/5

Topaz usually looks very clean to the naked eye so it has very few inclusions in its’ make-up and it rates 8 on the Mohs scale which makes it suitable for every day jewellery

Bergeon 7404

6.91ct Drop Shape Opal 20x12.3mm synthetic diamond screener Must be used when rhodiumOpal 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