{"product_id":"marquise-cut-lab-grown-diamond-ribbed-multi-rail-shank-ring","title":"Marquise Cut Lab Grown Diamond Ring on a Ribbed Multi Rail Shank in Silver, 10K, 14K and 18K Gold","description":"\u003cp\u003eA marquise cut laboratory grown diamond held at its two points, on a shank built from several fine rails that run side by side and fan apart as they reach the stone. The long pointed outline sits along the finger and the ribbed band carries the same lengthwise lines underneath it.\u003c\/p\u003e\u003ch2\u003eAt a glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCentre stone: Marquise 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: Claws at the points and sides, on a multi rail ribbed shank\u003c\/li\u003e\n\u003cli\u003eAccent stones: None\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\u003eA shank made of rails\u003c\/h2\u003e\u003cp\u003eInstead of one solid band, the shank is formed from several slim rails held together. They stay parallel around the finger and separate under the stone, so the claws appear to grow out of the band. Seen end on, there is daylight straight through the ring beneath the diamond.\u003c\/p\u003e\u003ch2\u003eWhy a marquise looks long\u003c\/h2\u003e\u003cp\u003eA marquise is cut as a long oval brought to a point at each end. Spread over more length than a round of the same weight, it makes the finger look longer, and it is one of the few shapes where a two carat stone already reaches most of the way across a narrow finger.\u003c\/p\u003e\u003ch2\u003eThe points are the careful part\u003c\/h2\u003e\u003cp\u003eEach end of a marquise is a thin edge of diamond, and it is where the stone can chip. The claws here are made to cover both tips fully rather than to sit beside them, which is the difference between a marquise that survives daily wear and one that does not.\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. This ring was photographed in yellow gold, which shows the ribbing on the shank most clearly, but every metal is made to order and priced above. 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 rails are shaped and soldered one against the next, then filed and polished as one piece so the grooves stay even the whole way round. The point claws are fitted last to the measured stone. 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 along the grooves between the rails and under the stone from both ends. Check the point claws once a year, as you would on any marquise. 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\u003eDo the points chip?\u003c\/strong\u003e Not when they are covered. Ours are set under full claws rather than left exposed, and we would rather lose a little of the outline than leave a tip unprotected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the certificate really free?\u003c\/strong\u003e Yes. The IGI report is included in the price on every variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill a wedding band sit flush?\u003c\/strong\u003e A straight band meets the high points of the rails, and the long stone sits well clear of it. A shaped band sits closer, and we will make one to match if you ask.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be resized?\u003c\/strong\u003e Yes, though the rails have to be cut and rejoined together, so we would rather make it to your size. One or two sizes of later adjustment is still straightforward.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I have this shank with a different stone shape?\u003c\/strong\u003e Yes. We make it with an elongated cushion and an emerald cut as well, and it suits ovals and pears. Tell us when you order.\u003c\/p\u003e","brand":"Mapple Gems","offers":[{"title":"925 Sterling Silver \/ 2 Carat","offer_id":61501358702732,"sku":"MG-MTR-190-925-2CT","price":705.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 3 Carat","offer_id":61501358735500,"sku":"MG-MTR-190-925-3CT","price":1305.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 4 Carat","offer_id":61501358768268,"sku":"MG-MTR-190-925-4CT","price":1705.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 5 Carat","offer_id":61501358801036,"sku":"MG-MTR-190-925-5CT","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 2 Carat","offer_id":61501358833804,"sku":"MG-MTR-190-10KY-2CT","price":1549.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 3 Carat","offer_id":61501358866572,"sku":"MG-MTR-190-10KY-3CT","price":2149.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 4 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