{"title":"Unheated Sapphires","description":"\u003cp class=\"mog-col-lead\"\u003eAn unheated sapphire is exactly as the earth made it — a natural stone that has never been heated or treated to alter its colour or clarity. Fine unheated sapphires can command a premium when colour, clarity, cut, size and origin are otherwise comparable, but treatment status is only one component of value. Every unheated sapphire we offer is verified and graded in-house by our FGAA gemmologist.\u003c\/p\u003e\n\u003cp class=\"mog-col-auth\"\u003eMost sapphires on the world market are heated. We believe in radical transparency: every treatment is disclosed, every significant stone can be independently certified, and every stone carries free lifetime re-authentication — our name behind each one.\u003c\/p\u003e\n\u003ch2 class=\"mog-col-faqh\"\u003eCommon questions\u003c\/h2\u003e\n\u003cdiv class=\"mog-faq-acc\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does unheated sapphire mean, and why does it matter?\u003c\/summary\u003e\u003cp\u003eUnheated means the sapphire has never been subjected to heat treatment — it is exactly as it formed in the earth, with its natural colour and clarity intact. It matters because untreated natural stones are rarer and more valuable, and because knowing what was done to a stone is the difference between buying wisely and buying blind.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between heated and unheated sapphire?\u003c\/summary\u003e\u003cp\u003eHeated sapphires have undergone a permanent, widely accepted treatment intended to improve colour and\/or clarity, and that treatment should always be disclosed. Unheated sapphires have had no such treatment. Both are genuine natural sapphires, but unheated stones are rarer and command a premium of roughly 50 to 300 percent.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre unheated sapphires more expensive?\u003c\/summary\u003e\u003cp\u003eThey can be. Fine unheated sapphires are less common, but there is no universal premium: value still depends on colour, clarity, cut, carat weight, origin, documentation and market demand.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know a sapphire is genuinely unheated?\u003c\/summary\u003e\u003cp\u003eInsist on independent laboratory certification stating 'no indications of heating', and full written disclosure from the seller. Our gemmologist examines each stone's inclusions — a sapphire's diary, which reveal treatment — and we can arrange an independent report for any significant stone.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.mog-faq-acc details{border-bottom:1px solid #e7e1d4;padding:2px 0}\n.mog-faq-acc summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none;position:relative;padding-right:28px}\n.mog-faq-acc summary::-webkit-details-marker{display:none}\n.mog-faq-acc summary::after{content:\"+\";position:absolute;right:4px;top:8px;color:#B08D57;font-size:20px}\n.mog-faq-acc details[open] summary::after{content:\"\\2212\"}\n.mog-faq-acc p{margin:0 0 14px;color:#5b6270}\n.mog-col-lead{font-size:17px;line-height:1.6}\n.mog-col-auth{color:#5b6270}\n.mog-col-faqh{font-family:var(--font-heading--family,Georgia,serif);color:#27436B;margin-top:24px}\n\u003c\/style\u003e","products":[{"product_id":"ceylon-blue-sapphire-unheated-4-55-cts","title":"Ceylon Blue Sapphire Unheated 4.55 cts","description":"\u003cp\u003eCeylon Blue Sapphire Unheated 4.55 cts, Oval Shape\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47107939205257,"sku":"202655 CC2","price":41990.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/original_ae8978c1-0c33-43a3-b120-91f87e2f22c2.png?v=1782564646"},{"product_id":"ceylon-blue-sapphire-unheated-5-6-cts","title":"Ceylon Blue Sapphire Unheated 5.6 cts","description":"\u003cp\u003eUnheated Ceylon Sapphire 5.6 cts, Oval Cut\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47107939369097,"sku":"202655_CC","price":49999.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/original_cbd463b4-6f3e-4a3e-b3f4-d6a947301800.png?v=1782564647"},{"product_id":"teal-australian-sapphire-2-19ct-cushion-unheated-12331","title":"Teal Australian Sapphire 2.19ct Cushion — Unheated","description":"\u003cp\u003eA natural australian sapphire in teal (green-blue), cut as a elongated cushion and weighing 2.19 carats.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.19 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.20 x 6.92 x 3.67 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Elongated cushion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Teal (Green-Blue)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 12331\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free shipping Australia-wide and 30-day returns. Interested in a custom setting? We design and manufacture fine jewellery in-house — contact us to bring this stone to life.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47151556919433,"sku":"12331","price":1787.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/rn-image_picker_lib_temp_b2d3f13a-4e00-4dfc-94a3-c7737bfecf4c.jpg?v=1786355964"},{"product_id":"royal-blue-ceylon-sapphire-3-24ct-oval-unheated-47011","title":"Royal Blue Ceylon Sapphire 3.24ct Oval — Unheated","description":"\u003cp\u003eA natural Ceylon sapphire in royal blue, cut as an oval and weighing 3.24 carats.\u003c\/p\u003e\u003cp\u003eAn exceptional unheated royal blue Ceylon sapphire of remarkable depth and saturation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.24 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.61 x 7.10 x 5.70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Oval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Ceylon (Sri Lanka)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 47011\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free shipping Australia-wide and 30-day returns. Interested in a custom setting? We design and manufacture fine jewellery in-house — contact us to bring this stone to life.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47151557836937,"sku":"47011","price":14100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/47011-01.jpg?v=1783089417"},{"product_id":"royal-blue-ceylon-sapphire-3-94ct-cushion-unheated-47005-14r","title":"Royal Blue Ceylon Sapphire 3.94ct Cushion — Unheated","description":"\u003cp\u003eA natural royal blue sapphire from Ceylon (Sri Lanka), cut as a cushion and weighing 3.94 carats — with no heat treatment of any kind.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.94 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8.35 x 7.73 x 6.46 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Cushion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Ceylon (Sri Lanka)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 47005-14R\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePictured in our \u003cstrong\u003eSplit-Shank Halo\u003c\/strong\u003e design and worn in our \u003cstrong\u003eRoyal Cathedral\u003c\/strong\u003e ring — both design visualisations built to this stone's exact measurements. Commission either setting (or your own design) around this stone via \u003ca href=\"\/pages\/design-your-ring\"\u003eDesign your Ring\u003c\/a\u003e, or acquire the stone loose.\u003c\/p\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free insured shipping Australia-wide, 30-day returns, and free lifetime re-authentication.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47915811537033,"sku":"47005-14R","price":25720.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/47005_stone.jpg?v=1785979366"},{"product_id":"royal-blue-ceylon-sapphire-2-93ct-cushion-unheated-47005-15r","title":"Royal Blue Ceylon Sapphire 2.93ct Cushion — Unheated","description":"\u003cp\u003eA natural royal blue sapphire from Ceylon (Sri Lanka), cut as a cushion and weighing 2.93 carats — with no heat treatment of any kind.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.93 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8.57 x 7.75 x 5.44 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Cushion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Ceylon (Sri Lanka)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 47005-15R\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePictured in our \u003cstrong\u003eSplit-Shank Halo\u003c\/strong\u003e design and worn in our \u003cstrong\u003eRoyal Cathedral\u003c\/strong\u003e ring — both design visualisations built to this stone's exact measurements. Commission either setting (or your own design) around this stone via \u003ca href=\"\/pages\/design-your-ring\"\u003eDesign your Ring\u003c\/a\u003e, or acquire the stone loose.\u003c\/p\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free insured shipping Australia-wide, 30-day returns, and free lifetime re-authentication.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47915811569801,"sku":"47005-15R","price":16596.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/47005_15R_stone.jpg?v=1785979375"},{"product_id":"royal-blue-ceylon-sapphire-3-60ct-round-unheated-47013-5r","title":"Royal Blue Ceylon Sapphire 3.60ct Round — Unheated","description":"\u003cp\u003eA natural royal blue sapphire from Ceylon (Sri Lanka), cut as a round and weighing 3.60 carats — with no heat treatment of any kind.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.60 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.47 x 9.39 x 5.31 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Ceylon (Sri Lanka)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 47013-5R\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePictured in our \u003cstrong\u003eSplit-Shank Halo\u003c\/strong\u003e design and worn in our \u003cstrong\u003eRoyal Cathedral\u003c\/strong\u003e ring — both design visualisations built to this stone's exact measurements. Commission either setting (or your own design) around this stone via \u003ca href=\"\/pages\/design-your-ring\"\u003eDesign your Ring\u003c\/a\u003e, or acquire the stone loose.\u003c\/p\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free insured shipping Australia-wide, 30-day returns, and free lifetime re-authentication.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47915811602569,"sku":"47013-5R","price":23501.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/47013_stone.jpg?v=1785979385"},{"product_id":"royal-blue-ceylon-sapphire-3-24ct-cushion-unheated-47040","title":"Royal Blue Ceylon Sapphire 3.24ct Cushion — Unheated","description":"\u003cp\u003eA natural royal blue sapphire from Ceylon (Sri Lanka), cut as a cushion and weighing 3.24 carats — with no heat treatment of any kind.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.24 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.03 x 7.37 x 5.28 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Cushion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Ceylon (Sri Lanka)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Unheated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock no.:\u003c\/strong\u003e 47040\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePictured in our \u003cstrong\u003eSplit-Shank Halo\u003c\/strong\u003e design and worn in our \u003cstrong\u003eRoyal Cathedral\u003c\/strong\u003e ring — both design visualisations built to this stone's exact measurements. Commission either setting (or your own design) around this stone via \u003ca href=\"\/pages\/design-your-ring\"\u003eDesign your Ring\u003c\/a\u003e, or acquire the stone loose.\u003c\/p\u003e\u003cp\u003eEvery stone at Ministry of Gems is assessed in-house by our FGAA-qualified gemmologist and sourced through our own mine-to-market supply chain — from the earth to your hands, with no middlemen. Free insured shipping Australia-wide, 30-day returns, and free lifetime re-authentication.\u003c\/p\u003e","brand":"Ministry of Gems","offers":[{"title":"Default Title","offer_id":47915811700873,"sku":"47040","price":28201.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/files\/ceylon-blue-sapphire-05-split-shank-ring.png?v=1785979399"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/4338\/3945\/collections\/47011-01.jpg?v=1783944916","url":"https:\/\/ministryofgems.com.au\/collections\/unheated-sapphires.oembed","provider":"Ministry of Gems®","version":"1.0","type":"link"}