10.69ct Oval Cabochon Black Opal 17x13mm Vallorbe Swiss Classic Set of 5 Diamond Needle Files

10.69ct Oval Cabochon Black Opal 17x13mm Vallorbe Swiss Classic Set of 5 Diamond Needle FilesBlack 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

Handle diameter at largest point Ø30mm

Includes bottom plate and blade

We shall contact you after placing the order to arrange a specific delivery date

Display Type: Digital Only

Supports 1-600x continuous magnification system

health and treatment

Nylon bristles

57/60 & 62/65mm

Spectral Response: 8~14um

7 sizes - 1 piece each

1 * Iron Stand

viewing places where normal camera hard to reach