{"product_id":"13-70-carat-bicolour-tourmaline","title":"13.70 Carat Bicolour Tourmaline","description":"\u003cp data-start=\"259\" data-end=\"571\"\u003eFrom the storied gemstone landscapes of Afghanistan comes this remarkable 13.70 carat natural bicolour tourmaline, a gemstone where two tones coexist in perfect equilibrium. Its refined cushion cut, balanced proportions, and loupe-clean clarity allow contrast to unfold with precision and calm authority.\u003c\/p\u003e\n\u003cp data-start=\"573\" data-end=\"1105\"\u003eKey Features:\u003cbr data-start=\"588\" data-end=\"591\"\u003eColour: Bicolour – a natural dialogue of hues, vivid yet composed\u003cbr data-start=\"659\" data-end=\"662\"\u003eWeight: 13.70 carats – commanding presence with elegant balance\u003cbr data-start=\"728\" data-end=\"731\"\u003eDimensions: 12.89 × 12.64 × 11.07 mm – sculptural proportions for bespoke high jewellery\u003cbr data-start=\"822\" data-end=\"825\"\u003eCut: Cushion – crafted to enhance depth, symmetry, and colour expression\u003cbr data-start=\"900\" data-end=\"903\"\u003eClarity: Loupe clean – flawless transparency\u003cbr data-start=\"950\" data-end=\"953\"\u003eTreatment: No heat, no treatment – 100% natural purity\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1107\" data-end=\"1338\"\u003eA gemstone of composed contrast and timeless refinement — where duality becomes design and colour finds its balance. Destined to anchor a bespoke high-jewellery creation defined by precision, individuality, and enduring elegance.\u003c\/p\u003e","brand":"Lisbon Gem Exchange Limited","offers":[{"title":"Default Title","offer_id":52525248315730,"sku":null,"price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/7496\/4306\/files\/IMG-20260117-WA0062.jpg?v=1768987661","url":"https:\/\/www.lisbongemex.com\/products\/13-70-carat-bicolour-tourmaline","provider":"Lisbon Gem Exchange Limited","version":"1.0","type":"link"}