10.69ct Oval Cabochon Black Opal 17x13mm Gemoro Platinum PRO 1001V Digital Scale Stainless steel so great for

Stainless steel so great for pickling

9 - 25mm Taper

camera lenses

The name opal derives from the word 'opalus' given by the Romans

- They are so simple to use and give a great view

10.69ct Oval Cabochon Black Opal 17x13mm Gemoro Platinum PRO 1001V Digital Scale Stainless steel so great forBlack opal are the most valuable and they have a dark black, grey, blue, green or brown background that makes the play of colour flashes stand out the most. Unlike ordinary opals, black opals have carbon and iron oxide trace elements present, which cause the unusual darkness of the stone. 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