{"product_id":"bi-colour-sapphire-3-70ct-round","title":"Natural Bi Colour Sapphire 3.70 Ct Round Cut – Blue Yellow Loose Sapphire for Engagement Ring or Custom Jewellery","description":"\u003ch2\u003eNatural Bi Colour Sapphire 3.70 Ct Round Cut – Blue Yellow Loose Sapphire for Custom Engagement Ring\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003enatural bi colour sapphire 3.70 carat round cut\u003c\/strong\u003e is a premium choice for buyers looking to \u003cstrong\u003ebuy natural sapphire for engagement ring\u003c\/strong\u003e or bespoke jewellery. Its striking combination of blue and yellow tones creates a rare and eye-catching gemstone.\u003c\/p\u003e\n\u003cp\u003eCut in a round shape, this \u003cstrong\u003eheat treated sapphire stone\u003c\/strong\u003e enhances colour contrast while presenting SI clarity. The round cut maximizes brilliance and symmetry, making it ideal for \u003cstrong\u003ecustom rings, pendants, or fine jewellery designs\u003c\/strong\u003e that stand out with strong visual impact.\u003c\/p\u003e\n\u003ch3\u003eSTONE INFORMATION\u003c\/h3\u003e\n\u003cp\u003e• Identification     - Natural Sapphire \u003cbr\u003e• Species              - Natural Corundum\u003cbr\u003e• Variety                - Bi colour Sapphire \u003cbr\u003e• Shape\/Cut          - Round \u003cbr\u003e• Clarity                 - SI\u003cbr\u003e• Weight                - 3.70 carat \u003cbr\u003e• Colour                 - Bi colour Blue Yellow \u003cbr\u003e• Measurement     - 9.00 x 5.20\u003cbr\u003e• Treatment           - Heat treated\u003cbr\u003e• Birthstone           - September\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSellers comments – Has crystal and mineral inclusions\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cp\u003eThis sapphire comes with a certificate from an authorised gemmologist.\u003c\/p\u003e\n\u003cp\u003eThis is a loose sapphire. It does not come as a ring\u003c\/p\u003e\n\u003cp\u003eDue to the natural colour composition of the gemstone, slight colour differences may appear under different lighting conditions.\u003c\/p\u003e\n\u003cp\u003eInterested in making a custom ring with this gemstone? Please inquire for design options.\u003c\/p\u003e\n\u003cp\u003eThis sapphire is suitable for engagement rings, pendants, or custom jewellery. Sapphires are valued for their durability, making them appropriate for everyday wear.\u003c\/p\u003e\n\u003cp\u003eWe offer custom jewellery services for our gemstones, including settings in gold, rose gold, white gold, silver, and platinum, with optional diamond accents. Please contact us for custom design inquiries.\u003c\/p\u003e\n\u003ch3\u003eExplore Related Sapphire Collections\u003c\/h3\u003e\n\u003cp\u003eBrowse our \u003ca href=\"collections\/blue-green-teal-sapphire?page=3\"\u003ebi colour, teal and blue green sapphire collection\u003c\/a\u003e, explore all \u003ca href=\"\/collections\/\"\u003eloose sapphires\u003c\/a\u003e, or learn more from our \u003ca href=\"\/blogs\/gemstone-articles?page=3\"\u003egemstone articles\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy choose a bi colour sapphire?\u003c\/h3\u003e\n\u003cp\u003eBi colour sapphires display two natural colours within a single gemstone, creating a unique and dynamic appearance. Each stone is one of a kind, making it ideal for personalised jewellery.\u003c\/p\u003e\n\u003ch3\u003eIs a 3.70 carat round sapphire suitable for engagement rings?\u003c\/h3\u003e\n\u003cp\u003eA sapphire of this size offers exceptional presence and rarity. The round cut enhances brilliance and symmetry, making it a premium option for engagement rings or statement jewellery designs.\u003c\/p\u003e\n\u003ch3\u003eWorldwide Shipping\u003c\/h3\u003e\n\u003cp\u003eWe provide free standard worldwide shipping, with tracking and full insurance. Estimated delivery time is 7–12 business days, though delays may occasionally occur due to international shipping conditions. Buyers are responsible for any customs duties or import taxes that may apply.\u003c\/p\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cp\u003eWe offer a 100% money-back guarantee if you are not satisfied with your purchase. Returns are accepted within 15 days of delivery, provided the gemstone is returned in its original, unused condition. Refunds will be processed after the gemstone is received and inspected.\u003c\/p\u003e\n\u003ch3\u003eImportant Facts About Our Gemstones\u003c\/h3\u003e\n\u003cp\u003e• All gemstones are natural and earth-mined, carefully inspected, cut, and polished by professionals to ensure high quality.\u003cbr\u003e• Our gemstones are not lab-created. Some stones may receive basic heat treatment, which is clearly stated in each product’s specifications.\u003cbr\u003e• Natural gemstones may contain inclusions such as feathers, colour bands, needle-like inclusions, or crystals, which may be visible under 10x magnification.\u003cbr\u003e• Due to scale variations, please allow ±0.1 carat tolerance, which does not affect pricing.\u003cbr\u003e• Images are taken from multiple angles to represent the stone accurately, though the gemstone may appear even more attractive in person. If you have any questions or special requests, please feel free to contact us. We appreciate your interest and hope to assist you again in the future.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"NASHGEMS","offers":[{"title":"Default Title","offer_id":48776428749028,"sku":"3.70 crt tl Rmlt 12","price":1050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/9569\/9940\/files\/BicoloursapphireloosestoneRoundcut3.70crt-2.jpg?v=1776522457","url":"https:\/\/www.nashgems.com\/products\/bi-colour-sapphire-3-70ct-round","provider":"NASHGEMS","version":"1.0","type":"link"}