拍品的状况可能存在极大差异，而由于其性质使然，拍品难以处于完美无瑕的状态。拍品均以拍卖时的状况出售。

- Overall condition good. Scratches and nicks to the metal throughout, consistent with normal wear.
- Additional marks: sizing band stamped 750, SWISS, maker's mark 'hourglass in an oval' for Gübelin.
- Black opal: measures approximately 15.45 x 11.28 x 4.72 mm, displays good play of colour, with blue, green, red, yellow and orange flashes, scratches to the surface throughout.
- Diamonds: total weight approximately 0.70 - 0.90 carat, assessed to be on average H to I colour, mainly VS clarity.
- Coloured diamonds: total weight approximately 0.70 - 0.90 carat, assessed to be on average VS to SI clarity.
- Please refer to the Conditions of Sale for further information regarding coloured stones.