{"product_id":"cushion-cut-lab-grown-diamond-two-tone-hidden-halo-ring","title":"Cushion Cut Lab Grown Diamond Two Tone Hidden Halo Engagement Ring in Silver, 10K, 14K and 18K Gold","description":"\u003cp\u003eA cushion cut laboratory grown diamond in a white metal head, on a warm gold shank, with a hidden halo tucked into the collar beneath the stone. Two metals in one ring, chosen for a reason: white claws disappear against a colourless diamond, while the gold band is what people actually see on the finger.\u003c\/p\u003e\u003ch2\u003eAt a glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCentre stone: 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: Four claw cushion with a hidden halo, two tone head and shank\u003c\/li\u003e\n\u003cli\u003eAccent stones: Round laboratory grown diamonds in the hidden halo, 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\u003eWhy jewellers mix metals\u003c\/h2\u003e\u003cp\u003eIt is not decoration, it is optics. Any warm metal touching a colourless stone will bounce a little of its own colour into the diamond, and the parts that touch most are the claws. Making the head in a white alloy removes that entirely, so an E colour stone reads as cold and white as it actually is. The gold shank then gives you the warmth on the hand. You get both without compromising either.\u003c\/p\u003e\u003ch2\u003eThe hidden halo\u003c\/h2\u003e\u003cp\u003eA row of small diamonds is set into the vertical wall of the basket, below the girdle of the cushion. From above you cannot see it at all and the stone keeps its own soft square outline. From the side it appears as a bright line under the diamond, lifting it clear of the shank so light reaches the pavilion from every direction.\u003c\/p\u003e\u003ch2\u003eAbout the cushion cut\u003c\/h2\u003e\u003cp\u003eA cushion is a square or slightly rectangular stone with rounded corners and gently curved sides, the shape of an old pillow. It is brilliant faceted, but with larger facets than a round, so it gives broader and slower flashes of light. People often describe the effect as candlelit rather than sharp.\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. Each variant is made in a single alloy as standard. If you would like the two tone combination shown in these photographs, a white head on a coloured shank, tell us in the order notes and we will make it that way at no extra cost. 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. A two tone ring is made as two components and joined, which takes longer than a single piece and is why we do not keep them in stock. 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. Turn the ring over and brush the hidden halo. If your head is rhodium plated white gold, expect to have it replated every year or two to keep it bright against the gold.\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 halo stones are matched to the same grade.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the two metals wear differently?\u003c\/strong\u003e Slightly. The plated white head will need refreshing before the gold band shows any age, which is normal for every two tone ring.\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 Very nearly. The shank is straight and plain, so a slim band sits close beneath the halo.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be resized?\u003c\/strong\u003e Yes. No stones are set in the shank, so it resizes easily.\u003c\/p\u003e","brand":"Mapple Gems","offers":[{"title":"925 Sterling Silver \/ 2 Carat","offer_id":61093253349516,"sku":"MG-CTT-026-925-2CT","price":773.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 3 Carat","offer_id":61093253382284,"sku":"MG-CTT-026-925-3CT","price":1373.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 4 Carat","offer_id":61093253415052,"sku":"MG-CTT-026-925-4CT","price":1773.0,"currency_code":"USD","in_stock":true},{"title":"925 Sterling Silver \/ 5 Carat","offer_id":61093253447820,"sku":"MG-CTT-026-925-5CT","price":2273.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 2 Carat","offer_id":61093253480588,"sku":"MG-CTT-026-10KY-2CT","price":1591.0,"currency_code":"USD","in_stock":true},{"title":"10K Yellow Gold \/ 3 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