{"product_id":"natural-colour-change-sapphire-4-99-ct-oval","title":"Natural Colour Change Sapphire – 4.99 ct Oval Mixed Cut","description":"\u003cp\u003eA natural colour change sapphire with violetish blue and purple colours recorded in its IGLC report. Weighing 4.99 ct, this oval mixed-cut loose gemstone offers a striking centrepiece for a bespoke design.\u003c\/p\u003e\u003ch3\u003eGemstone details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural corundum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariety:\u003c\/strong\u003e Colour change sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Violetish blue \/ purple, as stated in the report\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape and cut:\u003c\/strong\u003e Oval, mixed cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.99 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 10.78 × 7.67 × 7.08 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e No indication of thermal enhancement detected, as stated in the report.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCertificate\u003c\/h3\u003e\u003cp\u003eAccompanied by an International Gemmological Laboratory Colombo (IGLC) Gemmological Brief Report, number C24056, dated 23 October 2026.\u003c\/p\u003e\u003cp\u003eThe photographs show the gemstone from several angles. Its appearance may vary with lighting and screen settings.\u003c\/p\u003e","brand":"Serendi Gems","offers":[{"title":"Default Title","offer_id":60381245800832,"sku":null,"price":32569.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/4867\/5712\/files\/colour-change-sapphire-4-99ct-1.jpg?v=1794519881","url":"https:\/\/serendigems.com\/products\/natural-colour-change-sapphire-4-99-ct-oval","provider":"Serendi Gems","version":"1.0","type":"link"}