Type of jewel: Ruby and diamond cluster ring. Condition: In well-preserved condition, especially given this ring’s age. Country of origin: Belgium. Style: Vintage, with an oval ruby framed by a radiating diamond surround in an open, star-like outline. Era: Circa 1980. Material: 18K white gold (touchstone tested). Diamonds: Twelve round brilliant-cut diamonds with an estimated combined weight of 0.42 ct (colour and clarity: F–H, VVS–VS). Diamond weights, colour and clarity are approximate, as the stones were assessed in their settings and were not removed for grading or weighing. All diamonds in this ring were individually tested with the Magilabs' EXA Natural Diamond Detector and identified as natural diamonds. Gemstone: One natural oval-cut ruby, claw-set, with an estimated weight of 0.33 ct. The gemstone weight is approximate, as the stone was assessed in its setting and was not removed for weighing. It is common practice for gemstones to be treated in order to improve their colour or clarity. The ruby has not been tested for such treatments. Traditional gemstone associations: Ruby is traditionally associated with July and the 40th wedding anniversary, while diamond is the birthstone for April. Hallmarks: The maker’s mark has a barrel-shaped surround characteristic of Belgium; stamped ‘0750’. Dimensions: Ring head: 13.92 × 14.36 mm. - See picture with a ruler in cm and inches Weight: 4.0 g Ring size: EU 49; inner diameter approx. 15.6 mm; US approx. 4¾; UK approx. J. Ring sizes are professionally measured and rounded to the nearest millimetre; slight variations are standard and do not affect wear. Adin reference Nº: 26289-00088 - Photography copyright: Adin Fine Antique & Vintage Jewellery. - All jewels are delivered in an Adin jewellery box. Boxes shown in the photographs are display props unless stated otherwise. - With almost 50 years of experience in antique and vintage jewellery in Antwerp, Adin is recognised among fellow professionals for its specialist knowledge and professional integrity. Every jewel is accompanied by an Adin certificate featuring a photograph and detailed description, providing a useful record for identification and insurance purposes. - Shipped insured and registered. Collection in person is also welcome. - For shipments outside the European Union, import duties, taxes and other charges may apply and are the buyer’s responsibility. Please check the applicable requirements and costs in advance. - We invite you to browse our customer feedback for an impression of the service and satisfaction experienced by our clients. - See more of our pieces: https://auction.catawiki.com/lotsfrom/Adin - Antique and vintage jewellery may show signs of age and wear, including traces of earlier repairs or restoration. We preserve each piece in its authentic state and do not routinely remove surface marks or rhodium-plate white gold.