{"product_id":"antique-platinum-0-30ct-old-euro-diamond-filigree-engagement-ring-1","title":"Antique Platinum 0.30ct Old Euro Diamond Filigree Engagement Ring","description":"\u003cdiv\u003eAn exquisite example of early 20th-century craftsmanship, this antique platinum engagement ring showcases a sparkling 0.30-carat Old European cut diamond nestled within an intricately detailed filigree mounting.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eDelicately hand-pierced and hand-engraved, the setting features fine lace-like openwork, a hallmark of the Edwardian to early Art Deco era (circa 1910–1925). The Old European diamond — prized for its high crown, open culet, and warm, romantic brilliance — is securely held in a low-profile setting that perfectly balances elegance and wearability.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eCrafted entirely in solid platinum, this ring captures the timeless sophistication of the period when jewelry design emphasized lightness, precision, and femininity.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eWeight: 2.3 Grams\u003c\/div\u003e\u003cdiv\u003eStone: 0.30ct Diamond\u003c\/div\u003e\u003cdiv\u003eMeasurements: 6.8 x 19.6 x 5.8mm\u003c\/div\u003e\u003cdiv\u003eRing Size: 6\u003c\/div\u003e\u003cdiv\u003eHallmark: Crown\u003c\/div\u003e\u003cdiv\u003eMetal: 84.5 Pt, 6.3 Au, 4.3 Au, 3.3 Pd\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eItem #: BR-1714-100825-05\u003c\/div\u003e","brand":"Blue Ribbon Rarities","offers":[{"title":"Default Title","offer_id":41063101399112,"sku":"BR-1714-100825-05","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2223\/5059\/files\/DSC_5526_2556109_388cb75b-ec08-4796-bcb4-5d2be5929c70.jpg?v=1773976811","url":"https:\/\/www.blueribbonrarities.com\/products\/antique-platinum-0-30ct-old-euro-diamond-filigree-engagement-ring-1","provider":"Blue Ribbon Rarities","version":"1.0","type":"link"}