{"product_id":"vintage-18ct-white-gold-ruby-and-diamond-halo-pendant-necklace","title":"Vintage 18ct White Gold Ruby and Diamond Halo Pendant Necklace","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA fine vintage pendant necklace in 18ct white gold, set with a certified 1.25 carat oval ruby of Thai origin with no heat treatment, surrounded by a scalloped milgrain halo of round brilliant diamonds totalling approximately 1 carat, graded H\/VS. The ruby is deeply saturated — a rich, vivid red — and the no-heat designation is a mark of genuine rarity; the overwhelming majority of rubies on the market have been heat treated to improve their colour, making an unenhanced stone of this quality and size a meaningful find. The milgrain-edged scalloped halo is a beautifully period detail that softens the setting and gives the pendant a quietly vintage character.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe pendant carries full London hallmarks and is presented on its original 18-inch white gold cable chain with lobster clasp. Total weight is 5.4 grams. Condition is excellent throughout. A serious gemstone piece with independent certification, offered at a fraction of the price comparable stones command at auction.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMetal: 18ct white gold\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHallmarks: Full London hallmarks (pendant); 18ct (clasp)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEra: Vintage, mid-20th century\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCentre stone: 1.25ct oval ruby, Thai origin, no heat treatment (gemologist certified)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHalo: Round brilliant diamonds, approx. 1ct total, H\/VS\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSetting: Scalloped milgrain halo\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePendant dimensions: 9mm x 21mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eChain: 18\" cable link, lobster clasp\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWeight: 5.4g\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCondition: Excellent\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spectrum Antiques","offers":[{"title":"Default Title","offer_id":64121227280733,"sku":"SAO84","price":2650.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/0471\/3053\/files\/SAO841copy.jpg?v=1775640909","url":"https:\/\/www.spectrumantiques.com\/products\/vintage-18ct-white-gold-ruby-and-diamond-halo-pendant-necklace","provider":"Spectrum Antiques","version":"1.0","type":"link"}