Black Australian Boulder Opal (1.60ct) & Diamond (0.40ct) VS1 - 18 kt. Yellow gold - Ring Opal

18K yellow gold, hallmarked. Luxury ring weighing 5. 50 grams, US finger size 18. 75mm. Black Australian boulder opal face measuring 14x10x2mm or 1. 60ct. Surrounded by 20x brilliant-cut diamonds, for a total approx weight of 0. 40ct. Condition as seen per photograph. See finger gauge size photos - US size (mm) and French size. Please note that the weight of set gemstones are accurate estimates only, based on the stone's dimensions and category. For sapphires, rubies and emeralds "it is common industry procedure to treat/heat these stones to enhance their colour, and as such we do not guarantee that they are natural. This does not spoil their beauty. " By placing a bid on this lot, you are committing to a legally binding purchase and acknowledge having read the description and viewed all photographs related to it and its current condition. Antique/vintage items are not new and may show general signs of age-related usage. From a private collection of fine arts and jewellery. So that we may ship your items quicker to you, and as per Catawiki's buyer policy, we kindly request payment to be made within "three" days of the auction end (preferably immediately) . We have no control over shipping time - some destinations may take slightly longer to arrive. Many more special items for sale with combined postage where possible (please note that you must inform us of multiple purchases before we send out your items) .