{"product_id":"cushion-lab-grown-diamond-solitaire-engagement-rings","title":"Cushion Lab Grown Diamond Solitaire Engagement Ring","description":"\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eIn the photos\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eCustomizable\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCenter diamond\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCushion Old Mine Cut · 9.35 × 7.80 mm · approx. 3.00 ct\u003c\/td\u003e\n\u003ctd\u003e1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccent diamonds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal diamond weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 3.00 ct\u003c\/td\u003e\n\u003ctd\u003eVaries with center size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStone type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLab Grown Diamond\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFour Double-Claw Prong Cathedral Open Basket Solitaire\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish · Occasion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Polish · Engagement, Anniversary, Bridal\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch5\u003eAt a glance\u003c\/h5\u003e\n\n\u003cp\u003eA cushion Old Mine cut lab grown diamond solitaire engagement ring from Signora Jewels.\u003c\/p\u003e\n\n\u003cp\u003eAn approximately 3.00 ct cushion Old Mine cut diamond measuring 9.35 × 7.80 mm is secured in a four double-claw cathedral basket with an open gallery. IGI certified.\u003c\/p\u003e\n\n\u003cp\u003eMade to order in 11 metals: Silver, 9K\/14K\/18K Gold (Yellow, White and Rose) and Platinum.\u003c\/p\u003e\n\n\u003cp\u003eFree insured express shipping over $500, duties prepaid to the US, UK and Canada, 30-day returns.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEach metal color is shown in the photos. Choose your preferred center diamond weight and metal from the options on this page.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe broad facets of the Old Mine cushion create bold flashes of light while the softly rounded outline gives the stone its distinctive antique-inspired character. At \u003cstrong\u003eSignora Jewels\u003c\/strong\u003e, four double-claw prongs secure each corner without overwhelming the center, while the cathedral basket lifts the diamond above the shank so light can enter freely through the open gallery.\u003c\/p\u003e\n\n\u003cp\u003eThe approximately 2.10 mm comfort-fit shank provides balanced support beneath the larger center stone without distracting from its proportions. With an approximate setting height of 8.00 mm, the elevated basket creates an elegant side profile while keeping the solitaire refined and comfortable for everyday wear.\u003c\/p\u003e\n\n\u003cp\u003eBrowse our \u003ca href=\"\/collections\/engagement-rings\"\u003eengagement rings\u003c\/a\u003e, compare diamond shapes in the \u003ca href=\"\/pages\/diamond-stone-guide\"\u003ediamond stone guide\u003c\/a\u003e, or explore precious metal options in our \u003ca href=\"\/pages\/metal-guide\"\u003emetal guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDesign highlights\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eCushion Old Mine cut center shown at approximately 3.00 ct\u003c\/li\u003e\n\u003cli\u003eCustomizable center diamond from 1 ct to 4.5 ct\u003c\/li\u003e\n\u003cli\u003eFour double-claw cathedral basket\u003c\/li\u003e\n\u003cli\u003eOpen gallery beneath the center stone\u003c\/li\u003e\n\u003cli\u003eComfort-fit shank approximately 2.10 mm wide\u003c\/li\u003e\n\u003cli\u003eMade to order in 11 precious metal options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe double-claw prongs emphasize the softly squared outline of the Old Mine cushion while keeping the corners protected. The open cathedral basket creates an airy profile that complements the larger center stone without adding unnecessary visual weight.\u003c\/p\u003e\n\n\u003ch5\u003eDiamond \u0026amp; Ring Details\u003c\/h5\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCenter stone\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCushion Old Mine Cut · 9.35 × 7.80 mm · approx. 3.00 ct (shown)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccent stones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal weight \/ count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 3.00 ct · 1 Diamond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFour Double-Claw Prong Cathedral Open Basket Solitaire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCenter options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct and 4.5 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Polish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eMeasurements are approximate. Your selected center diamond weight determines the final proportions of the finished ring.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch5\u003eAbout Lab Grown Diamonds\u003c\/h5\u003e\n\n\u003cp\u003eThe Old Mine cushion is admired for its broad antique-style facets and soft pillow-shaped outline that produce larger flashes of light than modern brilliant cuts. Every center diamond is F color, VS1 clarity and IGI certified, selected to complement the proportions of this cathedral solitaire.\u003c\/p\u003e\n\n\u003ch5\u003eMetal, Care \u0026amp; Fit\u003c\/h5\u003e\n\n\u003cp\u003eAvailable in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the open cathedral basket using warm water, mild soap and a soft brush to remove everyday buildup and maintain the brilliance of the center diamond.\u003c\/p\u003e\n\n\u003ch5\u003eFAQ\u003c\/h5\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does this ring use double-claw prongs?\u003c\/strong\u003e\u003cbr\u003e\nEach corner is secured by two fine claw tips instead of one, providing additional protection while preserving the elegant outline of the Old Mine cushion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the cathedral basket?\u003c\/strong\u003e\u003cbr\u003e\nThe cathedral shoulders support the basket from below while raising the center diamond into stronger light. The open gallery also makes routine cleaning easier.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this ring be paired with a wedding band?\u003c\/strong\u003e\u003cbr\u003e\nYes. The cathedral basket allows many straight wedding bands to sit close, while contoured bands can follow the raised profile more precisely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich metal color best suits an Old Mine cushion?\u003c\/strong\u003e\u003cbr\u003e\nYellow and rose gold highlight the antique-inspired character of the cushion, while white gold and platinum emphasize the crisp outline of the double-claw cathedral setting.\u003c\/p\u003e","brand":"Signora Jewels","offers":[{"title":"Silver \/ 1 ct","offer_id":58566525092000,"sku":"SJ\/DR\/LGRG0671","price":371.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ 1.5 ct","offer_id":58566532628640,"sku":"SJ\/DR\/LGRG0671","price":551.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ 2 ct","offer_id":58566532661408,"sku":"SJ\/DR\/LGRG0671","price":756.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ 2.5 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