Antique jewelry object group engagement ring (or anniversary ring) Condition very good condition Country of origin unknown Style Vintage See also: vintage jewelry Style specifics The Interbellum is the period between the two World Wars and one can recognize a transition from the Art Deco style to the Retro style. Period ca. 1930 Material Two tones of precious metal, the main part being 18K yellow gold and the white parts are either white gold or platinum. (touchstone tested) Extra information Betrothal rings were used during Roman times, but weren't generally revived in the Western world until the 13th century. The first well-documented use of a diamond ring to signify engagement was by the Archduke Maximilian of Austria in imperial court of Vienna in 1477, upon his betrothal to Mary of Burgundy. Before the 20th century, other types of betrothal gifts were common. Before the end of the 19th century, the bride-to-be frequently received a sewing thimble rather than a engagement ring. This practice was particularly common among religious groups that shunned jewelry. Engagement rings didn't become standard in the West until the end of the 19th century, and diamond rings didn't become common until the 1930s. Now, 80% of the women are offered a diamond ring to signify engagement. (from: Wikipedia) Diamonds 14 old brilliant cut diamonds with an estimated weight of ± 1.10ct colour and clarity H/K, vs/i All diamond weights, color grades and clarity are approximate since stones are not removed from their mounts to preserve the integrity of the setting. All diamonds we offer are screened by the I.J.G.C. for whether they are natural or synthetic, and all diamonds in this jewel are 100% guaranteed to be natural. Precious stones One tourmaline with a weight of 6.59ct. See pictures for the IJGC-certificate of this stone or check this URL. Birthstones Diamond is the birthstone (or month stone) for April and tourmaline for October. Hallmarks No trace. Dimensions top of ring 1,82 cm (0,72 inch) x 1,57 cm (0,62 inch) Weight 6,10 gram (3,92 dwt) Ring size Continental EU: 52 & 16½ , Size USA: 6 , Size UK: L Adin Reference Nº 21266-0567 - 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 - It is common for antique & vintage jewellery to be thoughtfully refurbished, remodelled, or repaired to extend its life of wearability. Older items may well show signs of this loving attention.