Type of jewel: Art Deco blue imitation sapphire and diamond ring. Condition: In well-preserved condition, especially given this ring’s age. Style: Art Deco, featuring an angular geometric composition. Era: circa 1920. Material: 18K yellow gold, touchstone tested, with white gold or platinum appliqués. Technique: Millegrain-decorated work. Diamonds: Six rose-cut and senaille-cut diamonds. Rose-cut and senaille-cut diamonds are traditionally described by number rather than by estimated weight, colour or clarity grades. Their varying and often irregular depth prevents reliable weight estimation while mounted, while formal colour and clarity grading is not customary in the trade for diamonds of these antique cutting styles. All diamonds in this ring were individually tested with the Magilabs’ EXA Natural Diamond Detector and identified as natural diamonds. Gemstones: Six blue imitation sapphires. Traditional gemstone associations: As traditional imitations of sapphire, the blue stones echo sapphire’s associations with September and loyalty. Diamonds are traditionally associated with April and enduring love. Dimensions: Width across the ring head: 7.44 mm. - See picture with a ruler in cm and inches Weight: 2.00 g. Ring size: EU 60 (inside diameter approx. 19.1 mm), US 9, UK S. Ring sizes are professionally measured and rounded to the nearest millimetre; slight variations are standard and do not affect wear. Adin reference Nº: 26119-00031 - 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.