{"product_id":"20-925ct-ametrine-purple-amethyst-yellow-citrine-pixel-cut-15x20-mm-gemdrop®-verified","title":"20.925ct Ametrine Purple (Amethyst) –Yellow (Citrine) | Pixel Cut | 15x20 mm | Gemdrop® Verified","description":"\u003cp\u003eA spectacular \u003cstrong\u003e20.925 ct lab-grown Ametrine quartz\u003c\/strong\u003e displaying a striking natural-style combination of \u003cstrong\u003eAmethyst purple and Citrine yellow\u003c\/strong\u003e within a single crystal.\u003c\/p\u003e\n\u003cp\u003eAmetrine is a bicolour variety of \u003cstrong\u003equartz (SiO₂)\u003c\/strong\u003e combining the purple tones associated with amethyst and the yellow tones associated with citrine. This laboratory-grown gem has the same fundamental mineral composition and optical character as quartz, while being created under controlled conditions rather than formed naturally within the Earth.\u003c\/p\u003e\n\u003cp\u003eEvery Gemdrop® gem is individually scientifically verified and permanently recorded within the \u003cstrong\u003eGemdrop Verification Database\u003c\/strong\u003e, providing transparency and confidence in exactly what you are purchasing.\u003c\/p\u003e\n\u003ch2\u003eREAL QUARTZ. CREATED THROUGH SCIENCE.\u003c\/h2\u003e\n\u003cp\u003eThis gem is laboratory-grown \u003cstrong\u003equartz\u003c\/strong\u003e, chemically composed of \u003cstrong\u003esilicon dioxide (SiO₂)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eQuartz belongs to the \u003cstrong\u003etrigonal crystal system\u003c\/strong\u003e and typically has a refractive index around \u003cstrong\u003e1.55\u003c\/strong\u003e, consistent with the optical properties of amethyst, citrine, and ametrine.\u003c\/p\u003e\n\u003cp\u003eIts distinctive appearance combines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePurple zones:\u003c\/strong\u003e Amethyst colour\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eYellow zones:\u003c\/strong\u003e Citrine colour\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe interaction between these contrasting colours gives ametrine its distinctive bicolour appearance and makes each faceted gem visually dynamic.\u003c\/p\u003e\n\u003ch2\u003ePRECISION PIXEL CUT\u003c\/h2\u003e\n\u003cp\u003eThe striking \u003cstrong\u003ePixel Cut\u003c\/strong\u003e is a precision fantasy cut designed to create bold geometric reflections and a distinctive pixel-like pattern across the face of the gem.\u003c\/p\u003e\n\u003cp\u003eIts complex faceting interacts with the contrasting purple and yellow colour zones, creating shifting areas of brightness, depth, and colour as the gem moves through the light.\u003c\/p\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e15 × 20 mm\u003c\/strong\u003e and \u003cstrong\u003e20.925 ct\u003c\/strong\u003e, this is a substantial statement gem ideal for bespoke jewellery, pendants, collector pieces, and dramatic custom designs.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003eMohs hardness of 7\u003c\/strong\u003e, quartz is durable enough for many jewellery applications, although it should be treated with more care than harder materials such as sapphire or ruby.\u003c\/p\u003e\n\u003ch2\u003eGEMDROP® VERIFIED\u003c\/h2\u003e\n\u003cp\u003eEvery Gemdrop® gem undergoes scientific verification before being permanently recorded within the \u003cstrong\u003eGemdrop Verification Database\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eVerification records document key gemmological information including identity, dimensions, crystal system, optical properties, and physical characteristics.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGem Type:\u003c\/strong\u003e Ametrine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e Quartz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChemical Formula:\u003c\/strong\u003e SiO₂\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal System:\u003c\/strong\u003e Trigonal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lab-Grown\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColour:\u003c\/strong\u003e Purple (Amethyst) – Yellow (Citrine)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefractive Index:\u003c\/strong\u003e ~1.55\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCut Style:\u003c\/strong\u003e Precision Fantasy Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCut:\u003c\/strong\u003e Pixel Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15 × 20 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 20.925 ct\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardness:\u003c\/strong\u003e 7 Mohs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVerification:\u003c\/strong\u003e Gemdrop® Verified\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eScientifically verified. Transparently documented. A remarkable bicolour quartz gem created through science.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Gemdrop","offers":[{"title":"Default Title","offer_id":58594208973174,"sku":null,"price":55.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/5155\/8518\/files\/7429E646-05F9-4405-BB56-8AAB9220BB49.jpg?v=1788351171","url":"https:\/\/gemdrop.io\/products\/20-925ct-ametrine-purple-amethyst-yellow-citrine-pixel-cut-15x20-mm-gemdrop%c2%ae-verified","provider":"Gemdrop","version":"1.0","type":"link"}