{"product_id":"natural-greenish-blue-sapphire-1-25ct-radiant-cut-loose-gemstone","title":"Natural Greenish Blue Sapphire 1.25 Ct Radiant Cut Loose Gemstone | Heat Treated September Birthstone","description":"\u003carticle\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural greenish blue sapphire weighing 1.25 carats, featuring a radiant cut, greenish blue colour and heat treatment. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, complete with certification from an authorised gemologist.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis natural greenish blue sapphire displays an attractive blend of blue and green tones, giving it a distinctive appearance while maintaining the durability and elegance associated with natural sapphire. Sold as a loose gemstone, it provides flexibility for custom jewellery projects including engagement rings, pendants and personalised designs.\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 greenish blue sapphire\u003c\/li\u003e\n\u003cli\u003eWeight: 1.25 carats\u003c\/li\u003e\n\u003cli\u003eRadiant cut loose gemstone\u003c\/li\u003e\n\u003cli\u003eColour: Greenish Blue\u003c\/li\u003e\n\u003cli\u003eTreatment: Heat Treated\u003c\/li\u003e\n\u003cli\u003eBirthstone: September\u003c\/li\u003e\n\u003cli\u003eMohs Hardness: 9\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-style faceting with elegant geometric lines, enhancing light return and colour distribution. Sapphire belongs to the corundum family and ranks 9 on the Mohs hardness scale, making it suitable for jewellery intended for regular wear when professionally set.\u003c\/p\u003e\n\n\u003cp\u003eAs the September birthstone, sapphire has traditionally been associated with wisdom, sincerity and loyalty. Its durability and timeless appeal make it a popular choice for engagement rings, heirloom jewellery and custom fine jewellery.\u003c\/p\u003e\n\n\u003ch2\u003eGemstone Specifications\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eIdentification:\u003c\/strong\u003e Natural Sapphire\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eVariety:\u003c\/strong\u003e Greenish Blue Sapphire\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eShape \u0026amp; Cut:\u003c\/strong\u003e Radiant Cut\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.25 Carats\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Greenish Blue\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 4.90 × 6.60 × 3.70 mm\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat Treated\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eBirthstone:\u003c\/strong\u003e September\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Loose Gemstone (Unset)\u003c\/li\u003e\n\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 gemstone identification and disclosed treatment information.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeller Notes:\u003c\/strong\u003e A natural crystal inclusion is visible under magnification. Such internal characteristics are commonly found in natural earth-mined sapphires and are consistent with natural gemstone formation.\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 for:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eCustom engagement rings\u003c\/li\u003e\n\n\u003cli\u003eRadiant cut solitaire rings\u003c\/li\u003e\n\n\u003cli\u003eHalo ring designs\u003c\/li\u003e\n\n\u003cli\u003ePendants and necklaces\u003c\/li\u003e\n\n\u003cli\u003eFine bespoke jewellery\u003c\/li\u003e\n\n\u003cli\u003eSeptember birthstone jewellery\u003c\/li\u003e\n\n\u003cli\u003eGemstone collections\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cp\u003eCustom jewellery services are available in yellow gold, white gold, rose gold, silver and platinum settings.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Gemstone?\u003c\/h2\u003e\n\n\u003cp\u003eRadiant cut sapphires combine excellent brilliance with clean geometric symmetry, making them suitable for both classic and contemporary jewellery styles. The natural blend of green and blue tones gives this gemstone a distinctive appearance while retaining the durability and versatility for which sapphires are recognised.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Collections\u003c\/h2\u003e\n\n\u003cp\u003eBrowse related collections and educational resources:\u003c\/p\u003e\n\n\u003cul\u003e\n\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\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\"\u003eNatural Sapphire Collection\u003c\/a\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/collections\/all\"\u003eAll Loose Sapphire Gemstones\u003c\/a\u003e\u003c\/li\u003e\n\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\n\u003cli\u003e\u003ca href=\"https:\/\/www.nashgems.com\/blogs\/gemstone-articles\"\u003eGemstone Education Articles\u003c\/a\u003e\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\n\u003cp\u003eWorldwide shipping is available with tracking. Buyers are responsible for any applicable customs duties or import taxes.\u003c\/p\u003e\n\n\u003cp\u003eReturns are accepted within 15 days of delivery provided the gemstone is returned unused and in its original condition according to our published return policy.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs this a natural greenish blue sapphire?\u003c\/h3\u003e\n\n\u003cp\u003eYes. This gemstone is identified as a natural sapphire and is not synthetic or laboratory created.\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 and gemologist certificate.\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\u003eIs a radiant cut sapphire suitable for an engagement ring?\u003c\/h3\u003e\n\n\u003cp\u003eYes. The radiant cut offers excellent brilliance and durability, making it a popular choice for custom engagement ring designs.\u003c\/p\u003e\n\n\u003ch3\u003eWill the gemstone colour vary under different lighting?\u003c\/h3\u003e\n\n\u003cp\u003eNatural sapphires may display subtle colour differences under daylight, indoor lighting and studio lighting. This is a normal characteristic of natural coloured gemstones.\u003c\/p\u003e\n\n\u003c\/article\u003e\n","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":44641262502116,"sku":"1.25 tl rm lt7","price":567.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/IMG_2363.jpg?v=1745833867","url":"https:\/\/www.nashgems.com\/products\/natural-greenish-blue-sapphire-1-25ct-radiant-cut-loose-gemstone","provider":"NASHGEMS","version":"1.0","type":"link"}