{"product_id":"lehrer-torusring™-citrine-12mm-round-faceted-gemstone","title":"Lehrer TorusRing™ Citrine 12mm Round Faceted Gemstone","description":"Developed by self-taught gem carver and visionary jewelry artist Glenn Lehrer, the TorusRing™ cut explodes the familiar model of the ‘expected’ gem cut. Drawn from “the most prevalent form in nature,” the TorusRing reflects the torus—and just what is a ‘torus’? Well, picture in your mind’s eye the center of a hurricane as viewed from outer space, or a galaxy as viewed from the Hubble telescope, or the water in a whirlpool, or even the brilliant iris of your own eye. Each TorusRing™ gemstone is hand-cut and hand-faceted to draw light from without the gemstone and capture it within, endlessly multiplying, flowing from curved facet to curved facet. Says Glenn, “I carve in light . . . bending light . . . turning each sparkling ray into an almost liquid medium.” A TorusRing cut takes about five times longer to create than a traditional round brilliant and features not only the ‘eye’ at its center, with a 1.3mm white diamond (SI clarity; H\/I color) bezel-set in gold, but also a negative (inverted), faceted cone painstakingly carved into the back of the gemstone, behind the eye. The torus effect of the finished gemstone is hypnotic, heart-stopping and utterly heavenly.Rio Grande is the exclusive distributor of the Lehrer TorusRing™ gemstone.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGemstone Type:\u003c\/strong\u003e Citrine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Shape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Size:\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Type:\u003c\/strong\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhancement:\u003c\/strong\u003e Heat-treated (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs Hardness:\u003c\/strong\u003e 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefractive Index:\u003c\/strong\u003e 1.544–1.553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Gravity:\u003c\/strong\u003e 2.63–2.65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.000 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amadesa","offers":[{"title":"Default Title","offer_id":50755014197594,"sku":"7913212","price":287.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7897\/7882\/files\/7913212.jpg?v=1742365085","url":"https:\/\/www.amadesa.com\/products\/lehrer-torusring%e2%84%a2-citrine-12mm-round-faceted-gemstone","provider":"Amadesa","version":"1.0","type":"link"}