{"product_id":"tanzanite-round-faceted-gemstones-aa-grade","title":"Tanzanite Round Faceted Gemstones, AA-Grade","description":"\u003cp\u003eThis AA-grade round tanzanite features an attractive blue and purple trichroism; an ideal choice for one-of-a-kind jewelry designs. Highlight this feature by using it to create a delicate pendant with a single gemstone or combine it with a variety of other gems to create multicolor, mixed-stone necklace and earring designs. Tanzanite is one of the birthstones for December. Tanzanite, a name first used by Tiffany \u0026amp; Co., is a blue\/purple variety of zoisite, which is a trichroic gemstone—it often exhibits different colors when seen from different directions. These gemstones are cut to show the orientation of deep blue to violet-blue colors; the blue color is due to the traces of vanadium in the crystal structure. Round-cut gemstones are highly popular and the most commonly available. Rio round gemstones are calibrated for size and hand inspected to ensure maximum attractiveness.\u003c\/p\u003e","brand":"AGTA","offers":[{"title":"4mm","offer_id":52678132564314,"sku":"73288","price":85.8,"currency_code":"EUR","in_stock":true},{"title":"5mm","offer_id":52678132597082,"sku":"73289","price":85.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7897\/7882\/files\/73289.jpg?v=1763113388","url":"https:\/\/www.amadesa.com\/it-it\/products\/tanzanite-round-faceted-gemstones-aa-grade","provider":"Amadesa","version":"1.0","type":"link"}