Type of jewel: Vintage diamond ring with turquoise and large lapis lazuli Condition: In well-preserved condition, especially given the jewel`s age. Style: Vintage Era: ca. 1970 Material: 8K white gold (touchstone tested) Diamond(s): 30 single cut (also called English-cut, 8-cut or 8/8, a sort of simplified brilliant cut) with an estimated weight of ± 0.75ct. (colour and clarity: F/H, vs/i). - When we provide weights, colour grades, and clarity of diamonds, these are approximate unless otherwise stated, as we do not remove diamonds from their settings to preserve the integrity of the piece. - All diamonds, regardless of their size or shape, in our vintage and antique jewellery are verified as 100% natural by the IJGC laboratory. - We do not sell lab-grown (synthetic) diamonds. Precious stone(s): Fifteen turquoises and one large lapis lazuli Birth and month stones: Diamond is the birthstone (or month stone) for April, Turquoise is the birthstone (or month stone) for December, and Lapis lazuli is the birthstone (or month stone) for September. Hallmarks: Although the hallmark reads 18K, our careful testing indicates that the gold purity corresponds to 8K. Dimensions: top of ring width 2,60 cm (1,02 inch) x length 3,50 cm (1,38 inch) x height 2,15 cm (0,85 inch) - See picture with a ruler in cm and inches Weight: 18,50 gram (11,90 dwt) Ring size: EU-54 & 17¼, USA-6¾, UK-N Ring sizes are professionally measured and rounded to the nearest millimetre; slight variations are standard and do not affect wear. Adin reference Nº: 25321-0163 - All jewels are delivered in an Adin jewellery box. Jewellery boxes shown in photos are for display purposes only and are not included with the jewel, unless stated otherwise. - Accompanied by a professional report of authenticity for your peace of mind. - Shipped insured and registered for your security, though you're most welcome to collect in person. - For shipments outside the EU, import duties and other charges may apply. We advise checking this in advance. - We invite you to browse through our customer feedback to discover the level of satisfaction we consistently provide. - See more of our products, visit: https://auction.catawiki.com/lotsfrom/Adin - Antique and vintage jewellery often undergoes thoughtful refurbishment, remodelling, or repairs to enhance its longevity and wearability. Such pieces frequently bear marks of this tender care. Furthermore, we present our antique and vintage jewellery in its authentic state, refraining from removing scratches or applying rhodium plating to white gold items. Our priority is to preserve the genuine allure and history of each piece. However, as the new owner, you have the option to take it to a local goldsmith for a cosmetic refresh, should you choose.