{"product_id":"unheated-cut-ruby-zircon-large-pendant-on-sterling-silver-chain","title":"Unheated Cut Ruby \u0026 Zircon Large Pendant on Sterling Silver Chain","description":"\u003ch2\u003eRare, Unheated. Naturally Magnificent.\u003c\/h2\u003e\u003cp\u003eIn the world of fine gemstones, \u003cstrong\u003eunheated rubies\u003c\/strong\u003e are among the most coveted. Unlike the vast majority of rubies on the market — which are routinely heat-treated to enhance colour and clarity — this stone has never been altered. What you see is exactly what the Earth created: a \u003cstrong\u003ecut ruby\u003c\/strong\u003e of natural, untreated colour, accompanied by \u003cstrong\u003esparkling zircon\u003c\/strong\u003e accents, all set in a \u003cstrong\u003elarge sterling silver pendant\u003c\/strong\u003e on a sterling silver chain.\u003c\/p\u003e\u003ch2\u003eDetails\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentre stone:\u003c\/strong\u003e Natural, \u003cem\u003eunheated\u003c\/em\u003e cut ruby — corundum coloured by chromium, with no heat treatment or enhancement of any kind\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccompanying stone:\u003c\/strong\u003e Natural zircon — one of the oldest minerals on Earth, prized for its exceptional brilliance and fire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Large pendant, sterling silver (925)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Sterling silver (925)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Faceted ruby, maximising colour depth and light return\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach pendant is unique\u003c\/strong\u003e — natural gemstones vary in tone, saturation, and inclusion character\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Unheated Matters\u003c\/h2\u003e\u003cp\u003eHeat treatment is so common in the ruby trade that an unheated ruby commands a significant premium — even over treated stones of similar appearance. An unheated ruby carries a certificate of natural origin and is considered by collectors and gemmologists to be the purest expression of the gemstone. This is not just jewellery — it is a genuine collector's investment piece.\u003c\/p\u003e\u003ch2\u003eAbout the Stones\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRuby\u003c\/strong\u003e is a variety of corundum (aluminium oxide) with a Mohs hardness of 9 — one of the hardest gemstones on Earth. Its red colour is caused by trace amounts of chromium. \u003cstrong\u003eZircon\u003c\/strong\u003e (not to be confused with cubic zirconia) is a natural mineral with a refractive index rivalling diamond, producing extraordinary sparkle and fire that beautifully complements the ruby's deep red.\u003c\/p\u003e\u003ch2\u003eCare Instructions\u003c\/h2\u003e\u003cp\u003eRuby is exceptionally durable. Clean with warm soapy water and a soft brush. Avoid ultrasonic cleaners for the zircon, which can be more sensitive to vibration. Store in a padded jewellery box and polish the silver setting with a silver cloth to maintain its lustre.\u003c\/p\u003e","brand":"MILBO LAGS Jewellery and Gems","offers":[{"title":"Default Title","offer_id":53015785144640,"sku":"53015785144640","price":300.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/4238\/5472\/files\/17865250967705178935873074093638.jpg?v=1786525114","url":"https:\/\/milbolags.myshopify.com\/products\/unheated-cut-ruby-zircon-large-pendant-on-sterling-silver-chain","provider":"MILBO LAGS Jewellery and Gems and Fossils","version":"1.0","type":"link"}