{"product_id":"natural-bi-coloured-parti-sapphire-1-11ct-emerald-cut-loose-gemstone","title":"Natural Bi Coloured Parti Sapphire 1.11 Ct Emerald Cut Loose Gemstone | Green Yellow Unheated September Birthstone","description":"\u003carticle\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural bi coloured parti sapphire weighing 1.11 carats, featuring an emerald cut, green and yellow natural colour zoning, 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 gemologist.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis natural bi coloured parti sapphire displays a distinctive combination of green and yellow within a single crystal, creating the characteristic colour zoning that makes parti sapphires unique. Sold as a loose gemstone, it provides complete flexibility for creating a custom engagement ring, pendant or personalised fine jewellery piece.\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 bi coloured parti sapphire\u003c\/li\u003e\n\u003cli\u003eWeight: 1.11 Carats\u003c\/li\u003e\n\u003cli\u003eEmerald cut loose gemstone\u003c\/li\u003e\n\u003cli\u003eClarity: VVS\u003c\/li\u003e\n\u003cli\u003eColour: Green \/ Yellow Natural Parti Colour Zoning\u003c\/li\u003e\n\u003cli\u003eTreatment: Untreated (No Heat)\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 emerald cut emphasises the gemstone's natural colour zoning through elegant step facets while producing a refined and balanced appearance. 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. Parti sapphires are appreciated for their naturally occurring multi-colour appearance, making every gemstone visually distinctive and suitable for buyers seeking an alternative to traditional single-colour sapphires.\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 Bi Coloured Parti 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 1.11 Carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Green Yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 4.90 × 5.80 × 3.90 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Untreated (No Heat)\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 origin and key gemstone characteristics.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeller Notes:\u003c\/strong\u003e A clean gemstone displaying natural colour banding. The natural colour zoning visible within the stone is characteristic of parti sapphires and contributes to its unique appearance.\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\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 in yellow gold, white gold, rose gold, silver and platinum. Contact us to discuss a personalised jewellery design using this gemstone.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Gemstone?\u003c\/h2\u003e\n\n\u003cp\u003eBi coloured parti sapphires are valued for their naturally occurring combination of multiple colours within a single crystal. Every gemstone displays its own individual colour distribution, making each stone visually unique. Their durability, individuality and elegant appearance make them a popular choice for custom jewellery and gemstone collectors seeking something different from traditional sapphire colours.\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=\"https:\/\/www.nashgems.com\/collections\/blue-green-teal-sapphire\"\u003eTeal, Blue Green \u0026amp; Parti 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 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 coloured parti sapphire?\u003c\/h3\u003e\n\n\u003cp\u003eYes. This gemstone is a natural earth-mined parti sapphire displaying naturally occurring green and yellow colour zoning.\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 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\u003eCan this gemstone be used for an engagement ring?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Its emerald cut, durability and natural colour zoning make it suitable for custom engagement ring designs and other bespoke jewellery projects.\u003c\/p\u003e\n\n\u003ch3\u003eWhy do parti sapphires display multiple colours?\u003c\/h3\u003e\n\n\u003cp\u003eParti sapphires naturally develop two or more colours within the same crystal during formation. This natural colour zoning makes every gemstone unique.\u003c\/p\u003e\n\n\u003c\/article\u003e\n","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":44156020326628,"sku":"1.11 teal R47","price":661.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/bi_coloured_parti_sapphire_65gf.jpg?v=1745833111","url":"https:\/\/www.nashgems.com\/products\/natural-bi-coloured-parti-sapphire-1-11ct-emerald-cut-loose-gemstone","provider":"NASHGEMS","version":"1.0","type":"link"}