{"product_id":"natural-teal-blue-green-bi-colour-sapphire-1-38ct-emerald-cut-loose-gemstone","title":"Natural Teal Blue Green Bi Colour Sapphire 1.38 Ct Emerald Cut Loose Gemstone | No Heat September Birthstone","description":"\u003carticle\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural teal blue green bi colour sapphire weighing 1.38 carats, featuring an emerald cut, teal blue green colour, VVS clarity and untreated (no heat) status. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, complete with certification from an authorised gemmologist.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis natural teal blue green bi colour sapphire displays two naturally occurring colours within a single crystal, creating the distinctive appearance that makes bi colour sapphires unique. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or bespoke fine jewellery design.\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 blue green bi colour sapphire\u003c\/li\u003e\n\u003cli\u003eWeight: 1.38 carats\u003c\/li\u003e\n\u003cli\u003eEmerald cut loose gemstone\u003c\/li\u003e\n\u003cli\u003eClarity: VVS\u003c\/li\u003e\n\u003cli\u003eColour: Teal Blue Green\u003c\/li\u003e\n\u003cli\u003eTreatment: No Heat (Untreated)\u003c\/li\u003e\n\u003cli\u003eBirthstone: September\u003c\/li\u003e\n\u003cli\u003eCertificate from an authorised gemmologist included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cp\u003eThe emerald cut emphasises the gemstone's natural colour zoning while producing elegant step-cut reflections and balanced symmetry. 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 birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Bi colour sapphires offer a distinctive alternative to traditional blue sapphires while retaining the durability and timeless appeal for which natural sapphires are valued.\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 Blue Green Bi Colour Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape \u0026amp; Cut:\u003c\/strong\u003e Emerald Cut\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 1.38 Carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Teal Blue Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 5.40 × 6.40 × 3.90 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e No Heat (Untreated)\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 gemmologist confirming its natural origin and disclosed gemstone characteristics.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeller Notes:\u003c\/strong\u003e A clean gemstone. Minor natural internal characteristics may be visible under magnification and are consistent with natural sapphire 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\u003cli\u003eCustom engagement rings\u003c\/li\u003e\n\u003cli\u003eEmerald cut solitaire rings\u003c\/li\u003e\n\u003cli\u003eHalo ring designs\u003c\/li\u003e\n\u003cli\u003ePendants and necklaces\u003c\/li\u003e\n\u003cli\u003eBespoke fine jewellery\u003c\/li\u003e\n\u003cli\u003eSeptember birthstone jewellery\u003c\/li\u003e\n\u003cli\u003eGemstone collections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCustom jewellery services are available using yellow gold, white gold, rose gold, silver and platinum settings, with optional diamond accents.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Gemstone?\u003c\/h2\u003e\n\n\u003cp\u003eNatural bi colour sapphires display two naturally occurring colours within a single gemstone, making every stone visually distinctive. Their durability, elegant appearance and unique colour patterns make them a popular choice for custom jewellery and buyers seeking an alternative to traditional blue sapphires.\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\u003cli\u003e\u003ca href=\"\/collections\/blue-green-teal-sapphire\"\u003eBlue Green, Teal \u0026amp; Bi Colour Sapphire Collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/\"\u003eAll Loose Sapphire Gemstones\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/gemstone-articles\"\u003eGemstone Education Articles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/sapphire-gemstone-jewelry-rings\"\u003eCustom \u0026amp; Ready-to-Wear Sapphire Jewellery\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\n\u003cp\u003eFree worldwide standard shipping is available with tracking and insurance included. Delivery times vary depending on destination. 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, in accordance with our published return policy.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs this a natural bi colour sapphire?\u003c\/h3\u003e\n\n\u003cp\u003eYes. This gemstone is a natural earth-mined teal blue green bi colour sapphire and is not synthetic or laboratory created.\u003c\/p\u003e\n\n\u003ch3\u003eHas this sapphire received heat treatment?\u003c\/h3\u003e\n\n\u003cp\u003eNo. This gemstone is untreated (no heat), as disclosed in the specifications and gemmologist certificate.\u003c\/p\u003e\n\n\u003ch3\u003eIs this supplied as a finished engagement 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 an emerald cut sapphire suitable for an engagement ring?\u003c\/h3\u003e\n\n\u003cp\u003eYes. The emerald cut offers elegant symmetry and showcases the gemstone's natural colour zoning, making it well suited for a custom engagement ring.\u003c\/p\u003e\n\n\u003ch3\u003eWill the gemstone appear different under various lighting conditions?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Natural bi colour sapphires may display subtle colour variation under daylight, indoor lighting and other lighting environments due to their natural colour zoning.\u003c\/p\u003e\n\n\u003c\/article\u003e\n","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":48775869858020,"sku":"1.38 crt tl rum lt 12","price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/bicoloursapphireemeraldcut1.38crt-2.jpg?v=1776498110","url":"https:\/\/www.nashgems.com\/products\/natural-teal-blue-green-bi-colour-sapphire-1-38ct-emerald-cut-loose-gemstone","provider":"NASHGEMS","version":"1.0","type":"link"}