Art Deco platinum ring, circa 1930, centred with an octagonal step cut sapphire of deep velvety blue, held within a crisp geometric frame. The plaque head is lined with 50 rose cut diamonds in graduated rows, finished with fine millegrain and a light openwork gallery. Diamond set shoulders taper to a slender band, giving a clean line on the hand. A compact, architectural jewel that still feels quietly modern, in good condition for its age. Jewellery Type ring Condition good condition Country of origin unknown Style Art Deco - Art Deco is an eclectic artistic and design style which had its origins in Paris in the first decades of the 20th century. The style originated in the 1920s and continued to be employed until after World War II. The term "art deco" first saw wide use after an exhibition in 1966, referring to the 1925 Exposition Internationale des Arts Décoratifs et Industriels Modernes that was the culmination of high-end style modern in Paris. Led by the best designers in the decorative arts such as fashion, and interior design, Art Deco affected all areas of design throughout the 1920s and 1930s, including architecture and industrial design, as well as the visual arts such as painting, the graphic arts and film. At the time, this style was seen as elegant, glamorous, functional and modern. See also: Art Deco Style specifics Abstract motives and geometrical forms are quite typical for the Art Deco period. Period ca. 1930 Material Platinum (touchstone tested) Diamonds 50 rose cut diamonds . We do not have the weight of the diamonds which is normal in our trade when it comes to rose cuts. - All diamonds, regardless of their size or shape, in our vintage and antique jewellery are verified as 100% natural by the IJGC laboratory. Precious stones One sapphire with an estimated weight of ± 1.00ct All color stone weights are approximate since stones are not removed from their mounts to preserve the integrity of the setting. It is a very common practice to treat gemstones to intensify their clarity or colour. The item in question has not been tested in this regard. Birthstones Diamond is the birthstone (or month stone) for April and sapphire for September. Hallmarks No trace. Dimensions top of ring 1,68 cm (0,66 inch) x 1,17 cm (0,46 inch) Weight 4,40 gram (2,83 dwt) Ring size Continental EU: 54 & 17¼ , Size USA: 6¾ , Size UK: N Adin Reference Nº 26022-0153 - 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.