{"product_id":"radiant-cut-lab-grown-diamond-three-stone-trapezoid-side-ring","title":"Radiant Cut Lab Grown Diamond Three Stone Engagement Ring with Trapezoid Side Stones in Silver, 10K, 14K and 18K Gold","description":"\u003cp\u003eA radiant cut laboratory grown diamond with a step cut trapezoid set hard against each side, their sloping edges following the cropped corners of the centre stone so the three read as one solid block of light. The band is plain and squared off. This is a deliberately architectural three stone ring, with no curves anywhere in it.\u003c\/p\u003e\u003ch2\u003eAt a glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCentre stone: Radiant cut laboratory grown diamond\u003c\/li\u003e\n\u003cli\u003eCarat options: 2, 3, 4 and 5 carat\u003c\/li\u003e\n\u003cli\u003eColour and clarity: E colour, VVS2 clarity\u003c\/li\u003e\n\u003cli\u003eCertificate: IGI, included free\u003c\/li\u003e\n\u003cli\u003eSetting: Claw set radiant with a trapezoid step cut diamond on each side\u003c\/li\u003e\n\u003cli\u003eAccent stones: Trapezoid step cut laboratory grown diamonds, E colour, VVS2\u003c\/li\u003e\n\u003cli\u003eMetals: 925 silver, 10K, 14K and 18K gold in yellow, rose and white\u003c\/li\u003e\n\u003cli\u003eMade: To order in Surat, India\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTrapezoid side stones\u003c\/h2\u003e\u003cp\u003eA trapezoid, sometimes called a trapeze, has two parallel edges and two sloping ones. Set with the short edge outward it flares towards the centre stone and fills the space beside a radiant completely, with no gaps and no wasted metal. Round or pear sides would leave a gap. Trapezoids close it.\u003c\/p\u003e\u003ch2\u003eTwo cut styles, deliberately mismatched\u003c\/h2\u003e\u003cp\u003eThe radiant is brilliant faceted and throws fire. The trapezoids are step cut and give long, calm flashes instead. Because they behave so differently the eye reads the centre stone as brighter than it would against matching brilliants, which is the whole reason this pairing has survived since the deco period.\u003c\/p\u003e\u003ch2\u003eWhat laboratory grown means here\u003c\/h2\u003e\u003cp\u003eA laboratory grown diamond is a diamond. It is crystallised carbon with the same cubic structure, the same 10 on the Mohs scale, the same refractive index of 2.42 and the same dispersion as a mined stone. Ours are grown by chemical vapour deposition and high pressure high temperature methods, then cut and polished by hand. This is not moissanite, not cubic zirconia and not a simulant. A gemmologist testing it will read diamond, because it is diamond.\u003c\/p\u003e\u003ch2\u003eMetals\u003c\/h2\u003e\u003cp\u003eChoose 925 sterling silver, or 10K, 14K or 18K gold in yellow, rose or white. Yellow gold is photographed here and warms what is otherwise a very cool, geometric design. White gold or silver takes it fully modern. 10K is the hardest alloy, 14K is the everyday balance, and 18K is the richest colour but the softest metal. White gold is rhodium plated and will want replating every one to two years.\u003c\/p\u003e\u003ch2\u003eEvery centre stone arrives IGI certified\u003c\/h2\u003e\u003cp\u003eThe centre diamond is graded by IGI, the International Gemological Institute, and the certificate comes with the ring at no extra charge. It states the carat weight, the E colour grade, the VVS2 clarity grade, the measurements and the girdle inscription, and confirms in writing that the stone is laboratory grown.\u003c\/p\u003e\u003ch2\u003eMade to order in our own workshop\u003c\/h2\u003e\u003cp\u003eMapple Gems is a family run workshop in Surat, India, where most of the world's diamonds are cut and polished. Trapezoids have to be cut to the exact width of the individual radiant, so the side stones are made for your centre stone rather than picked from a tray. Allow two to three weeks for making, plus shipping.\u003c\/p\u003e\u003ch2\u003eLooking after it\u003c\/h2\u003e\u003cp\u003eWarm water, mild washing up liquid and a soft toothbrush. Brush the two straight seams where the trapezoids meet the radiant. Take it off for the gym, gardening and swimming.\u003c\/p\u003e\u003ch2\u003eQuestions we are asked\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat colour and clarity is the diamond?\u003c\/strong\u003e Every centre stone is E colour and VVS2 clarity, on every metal and every carat weight. The trapezoid side stones are matched to the same grade.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does the clarity grade matter more on step cuts?\u003c\/strong\u003e Step cut facets are large and open, so they hide far less than a brilliant. VVS2 means nothing is visible even under ten times magnification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the certificate really free?\u003c\/strong\u003e Yes. The IGI report for the centre stone is included in the price on every variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill a wedding band sit flush against it?\u003c\/strong\u003e Yes, unusually well. The trapezoids step down to band height, so a straight band meets the ring in a clean line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be resized?\u003c\/strong\u003e Yes. All three stones sit in the head and none are set in the shank.\u003c\/p\u003e","brand":"Mapple Gems","offers":[{"title":"925 Sterling Silver \/ 2 Carat","offer_id":60998884556940,"sku":"MG-RT3-019-925-2CT","price":795.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 3 Carat","offer_id":60998884589708,"sku":"MG-RT3-019-925-3CT","price":1395.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 4 Carat","offer_id":60998884622476,"sku":"MG-RT3-019-925-4CT","price":1795.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 5 Carat","offer_id":60998884655244,"sku":"MG-RT3-019-925-5CT","price":2295.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 2 Carat","offer_id":60998884688012,"sku":"MG-RT3-019-10KY-2CT","price":1590.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 3 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