{"product_id":"estuary-channel-cushion-blue-topaz-ring","title":"Estuary Channel Cushion Blue Topaz Ring","description":"\u003cp\u003eAccents flow along the band and up to a cushion cut blue topaz here, a channel of sparkle leading to a soft square of colour. It is a right hand ring, relaxed and bright. You choose the blue: London for a deep steely tone, Swiss for vivid punch, Sky for a paler calm, all genuine topaz. The colour comes from irradiation and heat, a routine and permanent step we name up front. Since topaz can split along its cleavage, the flush channel keeps the accents protected and the cushion softens the corners. Pick your metal, carat and blue below.\u003c\/p\u003e\u003cp class=\"ds-disclosure\"\u003e\u003cstrong\u003eShown complete with a real Cushion blue topaz center from 0.75 to 2.5 carat, a london blue topaz (deep steely blue), swiss blue topaz (vivid electric blue), or sky blue topaz (pale watery blue), your choice, from $2,109 all-in.\u003c\/strong\u003e The price is the finished ring: the setting, the blue topaz center you choose, and the labor to set and size it. Blue topaz rates 8 on the Mohs scale, so it is hard, but it has a perfect cleavage plane, which means a sharp knock can split it; a protective setting suits it and it is best removed for gardening, the gym, and rough work. Almost all blue topaz is irradiated and heat treated from colourless topaz to reach its blue, a standard, stable and permanent step that is cleared for sale before the stone ships, and we disclose it plainly rather than claim the stone is untreated. These calibrated stones ship without an individual lab report. Want a certified or larger center? \u003ca href=\"mailto:concierge@diamondandsapphire.com\"\u003eContact our concierge\u003c\/a\u003e and we will source and quote it honestly.\u003c\/p\u003e\u003cdiv class=\"ds-trust\"\u003e\u003cul\u003e\n\u003cli\u003eFree fully insured shipping\u003c\/li\u003e\n\u003cli\u003eFree 2-day express over $250\u003c\/li\u003e\n\u003cli\u003e30-day returns\u003c\/li\u003e\n\u003cli\u003eFree first-year resizing\u003c\/li\u003e\n\u003cli\u003eLifetime warranty on the setting\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Diamond \u0026 Sapphire","offers":[{"title":"14K Rose Gold \/ 0.75 ct \/ London Blue Topaz","offer_id":47680705888434,"sku":"71147:100001:P:14KR-BT97142","price":2129.0,"currency_code":"USD","in_stock":true},{"title":"14K Rose Gold \/ 0.75 ct \/ Swiss Blue Topaz","offer_id":47680705921202,"sku":"71147:100001:P:14KR-BT170593","price":2109.0,"currency_code":"USD","in_stock":true},{"title":"14K Rose Gold \/ 0.75 ct \/ Sky Blue 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