{"product_id":"elongated-cushion-lab-grown-diamond-bypass-wave-shank-ring","title":"Elongated Cushion Cut Lab Grown Diamond Bypass Wave Shank Engagement Ring in Silver, 10K, 14K and 18K Gold","description":"\u003cp\u003eAn elongated cushion cut laboratory grown diamond held between two arms of a band that never quite meet. The shank divides well below the stone, sweeps up on either side in opposite directions and passes behind it, so the ring reads as a wave with a diamond caught in the middle.\u003c\/p\u003e\u003ch2\u003eAt a glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCentre stone: Elongated cushion 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 cushion on a bypass wave shank\u003c\/li\u003e\n\u003cli\u003eAccent stones: None, this is a true solitaire\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\u003eThe wave\u003c\/h2\u003e\u003cp\u003eRather than rising symmetrically to a head, the two sides of the band travel in opposite directions and cross behind the stone. From the side you see two curves moving past each other; from above, a clean rectangle floating on metal that appears to have flowed around it. There is no visible join, and no conventional basket.\u003c\/p\u003e\u003ch2\u003eWhy it suits a cushion\u003c\/h2\u003e\u003cp\u003eAn elongated cushion is a soft shape: curved sides, rounded corners, nothing sharp. A bypass shank is the only setting geometry that is equally soft, so the two agree. On a stone with hard corners, such as an emerald or an Asscher, the same shank would look like an argument.\u003c\/p\u003e\u003ch2\u003eWhat an elongated cushion is\u003c\/h2\u003e\u003cp\u003eA rectangle with rounded corners and gently curved sides, faceted as a brilliant. The facets are larger and more open than a round brilliant's, giving a slower, broader glow rather than fast white flashes, and the elongation makes it more flattering on the finger than a square cushion.\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 a warm flowing curve under a colourless stone is the effect the design is built for. On a bypass shank we would suggest 10K or 14K, which are harder alloys and hold the shape of the wave better than 18K. 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. The two arms are formed to your finger size so they cross at the correct point behind the stone, which is a matter of a degree or two and cannot be corrected later. 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. Work the brush into the crossing point behind the stone, which is the one place on this ring that will not rinse clean by itself. 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a bypass shank secure?\u003c\/strong\u003e Yes. The arms are joined behind the stone where it does not show, and the claws hold the cushion at all four corners as in any conventional setting.\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 No, not flat. The shank is at a different height on each side, so this ring is designed to be worn alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be resized?\u003c\/strong\u003e Only slightly, because resizing alters where the two arms cross. Please measure carefully and we will build to your size.\u003c\/p\u003e","brand":"Mapple Gems","offers":[{"title":"925 Sterling Silver \/ 2 Carat","offer_id":61189687705740,"sku":"MG-ECW-116-925-2CT","price":754.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 3 Carat","offer_id":61189687738508,"sku":"MG-ECW-116-925-3CT","price":1354.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 4 Carat","offer_id":61189687771276,"sku":"MG-ECW-116-925-4CT","price":1754.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 5 Carat","offer_id":61189687804044,"sku":"MG-ECW-116-925-5CT","price":2254.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 2 Carat","offer_id":61189687836812,"sku":"MG-ECW-116-10KY-2CT","price":1543.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 3 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