{"product_id":"natural-teal-sapphire-1-66ct-radiant-cut-loose-gemstone","title":"Natural Teal Sapphire 1.66 Ct Radiant Cut Loose Gemstone | Heat Treated September Birthstone","description":"\u003carticle\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural teal sapphire weighing 1.66 carats, featuring a radiant cut, greenish blue colour, VVS clarity and heat treatment. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, with certification from an authorised gemologist.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis natural teal sapphire weighs 1.66 carats and displays an attractive blend of greenish blue tones that can appear differently under varying lighting conditions. Sold as a loose gemstone, it offers flexibility for custom engagement rings, pendants and personalised fine jewellery while showcasing the durability and timeless appeal associated with natural sapphire.\u003c\/p\u003e\n\n\u003cdiv class=\"ai-search-summary\" style=\"background:#f0f6ff;padding:16px;border-radius:8px;margin-bottom:20px;\"\u003e\n\n\u003ch3 style=\"margin-top:0;\"\u003eQuick Summary\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eNatural Teal Sapphire\u003c\/li\u003e\n\u003cli\u003eWeight: 1.66 Carats\u003c\/li\u003e\n\u003cli\u003eRadiant Cut Loose Gemstone\u003c\/li\u003e\n\u003cli\u003eColour: Greenish Blue\u003c\/li\u003e\n\u003cli\u003eClarity: VVS\u003c\/li\u003e\n\u003cli\u003eTreatment: Heat Treated\u003c\/li\u003e\n\u003cli\u003eBirthstone: September\u003c\/li\u003e\n\u003cli\u003eGemologist Certificate Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cp\u003eThe radiant cut combines brilliant faceting with structured geometry, creating excellent light return while maintaining crisp edges. Teal sapphires are appreciated for their distinctive blend of blue and green hues, making them a popular alternative to traditional blue sapphires for bespoke jewellery.\u003c\/p\u003e\n\n\u003cp\u003eSapphire belongs to the natural corundum family and ranks 9 on the Mohs hardness scale, making it suitable for jewellery intended for regular wear when professionally set. As the September birthstone, sapphire has traditionally been associated with wisdom, loyalty and sincerity.\u003c\/p\u003e\n\n\u003ch2\u003eGemstone Specifications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentification:\u003c\/strong\u003e Natural Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariety:\u003c\/strong\u003e Teal Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape \u0026amp; Cut:\u003c\/strong\u003e Radiant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e VVS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.66 Carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Greenish Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 5.90 × 6.80 × 4.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat Treated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBirthstone:\u003c\/strong\u003e September\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCertification \u0026amp; Authenticity\u003c\/h2\u003e\n\n\u003cp\u003eThis sapphire includes a certificate issued by an authorised gemologist confirming its natural identity and disclosed treatment information.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeller Notes:\u003c\/strong\u003e This gemstone presents as a clean stone. Minor natural internal characteristics may be visible under magnification and are consistent with the natural formation of sapphire.\u003c\/p\u003e\n\n\u003ch2\u003eJewellery Applications\u003c\/h2\u003e\n\n\u003cp\u003eThis listing is for a loose gemstone only and does not include a finished jewellery setting.\u003c\/p\u003e\n\n\u003cp\u003eSuitable applications include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eCustom engagement rings\u003c\/li\u003e\n\u003cli\u003eSolitaire ring designs\u003c\/li\u003e\n\u003cli\u003eHalo ring settings\u003c\/li\u003e\n\u003cli\u003ePendants and necklaces\u003c\/li\u003e\n\u003cli\u003eAnniversary jewellery\u003c\/li\u003e\n\u003cli\u003eCustom fine jewellery\u003c\/li\u003e\n\u003cli\u003eSeptember birthstone jewellery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCustom jewellery manufacturing is available in yellow gold, white gold, rose gold, silver and platinum. Please contact us to discuss bespoke design options.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Gemstone?\u003c\/h2\u003e\n\n\u003cp\u003eNatural teal sapphires are valued for their distinctive blend of blue and green tones, durability and suitability for everyday jewellery. Every natural sapphire displays its own individual colour character, making each gemstone unique while offering the lasting performance expected from corundum.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Collections\u003c\/h2\u003e\n\n\u003cp\u003eBrowse related gemstone collections and educational resources:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\/blue-green-teal-sapphire\"\u003eBlue-Green \u0026amp; Teal Sapphire Collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\"\u003eNatural Sapphire Collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\/all\"\u003eAll Loose Sapphire Gemstones\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\/sapphire-gemstone-jewelry-rings\"\u003eCustom \u0026amp; Ready-to-Wear Sapphire Jewellery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/blogs\/gemstone-articles\"\u003eGemstone Education Articles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/pages\/contact\"\u003eContact Us\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\n\u003cp\u003eWorldwide shipping is available. Buyers are responsible for any applicable customs duties or import taxes. Returns are accepted according to our published return policy, provided the gemstone is returned unused and in its original condition.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs this a natural teal sapphire?\u003c\/h3\u003e\n\n\u003cp\u003eYes. This gemstone is identified as a natural teal sapphire belonging to the corundum mineral family.\u003c\/p\u003e\n\n\u003ch3\u003eHas this sapphire been treated?\u003c\/h3\u003e\n\n\u003cp\u003eYes. This gemstone has undergone heat treatment, which is disclosed in the product specifications.\u003c\/p\u003e\n\n\u003ch3\u003eDoes this sapphire include certification?\u003c\/h3\u003e\n\n\u003cp\u003eYes. A certificate from an authorised gemologist is included with the gemstone.\u003c\/p\u003e\n\n\u003ch3\u003eIs this sold as a finished ring?\u003c\/h3\u003e\n\n\u003cp\u003eNo. This listing is for a loose gemstone only. Custom jewellery settings are available separately.\u003c\/p\u003e\n\n\u003ch3\u003eCan this gemstone be used for an engagement ring?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Its radiant cut, durability and attractive greenish blue colour make it well suited for custom engagement ring designs.\u003c\/p\u003e\n\n\u003c\/article\u003e\n","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":44641284292836,"sku":"1.66 rdnt2 tl rm lt7 17","price":1039.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/teal_sapphire_1.66_crt_mn_56.jpg?v=1745833888","url":"https:\/\/www.nashgems.com\/products\/natural-teal-sapphire-1-66ct-radiant-cut-loose-gemstone","provider":"NASHGEMS","version":"1.0","type":"link"}