{"product_id":"natural-parti-sapphire-4-55ct-radiant-cut-loose-gemstone","title":"Natural Parti Sapphire 4.55 Ct Radiant Cut Loose Gemstone | Yellow Green Bi-Colour Sapphire | September Birthstone","description":"\u003carticle\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural Parti Sapphire weighing 4.55 carats, featuring a radiant cut, yellow-green bi-colour appearance and heat treatment. Offered as a loose gemstone for custom jewellery and supplied with certification from an authorised gemologist.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis natural parti sapphire weighs 4.55 carats and displays a distinctive combination of yellow and green colours created by natural colour zoning during crystal growth. Its radiant cut enhances brightness and showcases the gemstone's unique colour distribution, making it suitable for custom engagement rings, pendants, and statement jewellery designs.\u003c\/p\u003e\n\n\u003cdiv class=\"ai-search-summary\"\u003e\n\u003ch3\u003eQuick Summary\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Parti Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.55 Carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Radiant Cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Yellow Green Bi-Colour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat Treated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e SI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBirthstone:\u003c\/strong\u003e September\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eParti sapphires are natural corundum gemstones known for displaying multiple colours within a single crystal. Their distinctive colour zoning creates a one-of-a-kind appearance that differs from traditional single-colour sapphires. With a hardness of 9 on the Mohs scale, sapphire is suitable for jewellery intended for regular wear when professionally set.\u003c\/p\u003e\n\n\u003cp\u003eAs a September birthstone, sapphire has long been associated with wisdom, sincerity, and loyalty in traditional gemstone symbolism. Parti sapphires appeal to buyers seeking a gemstone with natural colour variation and individual character.\u003c\/p\u003e\n\n\u003ch3\u003eGemstone Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGemstone:\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 Parti Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Radiant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e SI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.55 Carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Yellow Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.65 × 8.90 × 6.50 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\u003ch3\u003eCertification \u0026amp; Authenticity\u003c\/h3\u003e\n\n\u003cp\u003eThis sapphire includes a certificate from an authorised gemologist confirming its identity as a natural sapphire and disclosing its treatment status.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeller Notes:\u003c\/strong\u003e Crystal inclusions are present within the gemstone. These characteristics are commonly found in natural sapphires and are consistent with natural gemstone formation.\u003c\/p\u003e\n\n\u003ch3\u003eJewellery Applications\u003c\/h3\u003e\n\n\u003cp\u003eThis gemstone is sold loose and is not supplied as a finished jewellery item. Suitable applications include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eCustom Engagement Rings\u003c\/li\u003e\n\u003cli\u003eStatement Rings\u003c\/li\u003e\n\u003cli\u003ePendants and Necklaces\u003c\/li\u003e\n\u003cli\u003eSeptember Birthstone Jewellery\u003c\/li\u003e\n\u003cli\u003eCustom Fine Jewellery Projects\u003c\/li\u003e\n\u003cli\u003eGemstone Collections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCustom jewellery services are available using gold, rose gold, white gold, silver, and platinum settings.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This Gemstone?\u003c\/h3\u003e\n\n\u003cp\u003eParti sapphires are valued for their naturally occurring colour zoning and distinctive appearance. Unlike single-colour sapphires, they display multiple colours within one gemstone, creating visual depth and individuality. The radiant cut further enhances brilliance while highlighting the gemstone's unique colour transitions.\u003c\/p\u003e\n\n\u003ch3\u003eExplore Related Collections\u003c\/h3\u003e\n\n\u003cp\u003e\nBrowse related selections and educational resources:\n\u003ca href=\"https:\/\/www.nashgems.com\/collections\/blue-green-teal-sapphire\"\u003eTeal, Blue \u0026amp; Green Sapphire Collection\u003c\/a\u003e |\n\u003ca href=\"https:\/\/www.nashgems.com\/collections\"\u003eNatural Sapphire Collection\u003c\/a\u003e |\n\u003ca href=\"https:\/\/www.nashgems.com\/collections\/all\"\u003eAll Gemstones\u003c\/a\u003e |\n\u003ca href=\"https:\/\/www.nashgems.com\/collections\/sapphire-gemstone-jewelry-rings\"\u003eReady-to-Wear Jewellery\u003c\/a\u003e |\n\u003ca href=\"https:\/\/www.nashgems.com\/pages\/contact\"\u003eContact Us\u003c\/a\u003e |\n\u003ca href=\"https:\/\/www.nashgems.com\/blogs\/gemstone-articles\"\u003eGemstone Education Articles\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\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.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is a parti sapphire?\u003c\/h4\u003e\n\u003cp\u003eA parti sapphire is a natural sapphire that displays two or more colours within a single gemstone due to natural colour zoning during crystal growth.\u003c\/p\u003e\n\n\u003ch4\u003eIs this a natural sapphire?\u003c\/h4\u003e\n\u003cp\u003eYes. This gemstone is identified as a natural sapphire belonging to the corundum family.\u003c\/p\u003e\n\n\u003ch4\u003eHas this sapphire been treated?\u003c\/h4\u003e\n\u003cp\u003eYes. This sapphire has undergone heat treatment, which is disclosed in the specifications.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the gemstone include certification?\u003c\/h4\u003e\n\u003cp\u003eYes. A certificate from an authorised gemologist is included.\u003c\/p\u003e\n\n\u003ch4\u003eCan this sapphire be used in an engagement ring?\u003c\/h4\u003e\n\u003cp\u003eYes. Its durability and radiant cut make it suitable for custom engagement ring designs.\u003c\/p\u003e\n\n\u003ch4\u003eIs this sold as a loose gemstone?\u003c\/h4\u003e\n\u003cp\u003eYes. The sapphire is sold loose and is not supplied as a finished jewellery item.\u003c\/p\u003e\n\n\u003c\/article\u003e\n","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":44642206056676,"sku":"4.55 tl rm lt7","price":3675.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/bi_coloured_parti_sapphire_fbd.jpg?v=1745833978","url":"https:\/\/www.nashgems.com\/products\/natural-parti-sapphire-4-55ct-radiant-cut-loose-gemstone","provider":"NASHGEMS","version":"1.0","type":"link"}