{"product_id":"3-5-carat-blue-lab-grown-diamond-engagement-ring-cushion-cut-three-stone-trilogy","title":"3.5 Carat Blue Lab Grown Diamond Engagement Ring · Cushion Cut Three Stone | Trilogy","description":"\u003cstyle\u003e\n  .mohana-pdp { font-family: inherit; color: #2b2b2b; line-height: 1.65; max-width: 100%; }\n  .mohana-pdp * { font-family: inherit; }\n  .mohana-pdp p { margin: 0 0 1em; font-size: 0.97rem; }\n  .mohana-pdp ul { margin: 0 0 1em 0; padding: 0; list-style: none; }\n  .mohana-pdp ul li { position: relative; padding-left: 1.4em; margin-bottom: 0.55em; font-size: 0.97rem; }\n  .mohana-pdp ul li::before { content: \"✦\"; color: #4a6fa5; position: absolute; left: 0; top: 0; }\n  .mohana-pdp details { border-top: 1px solid #d5dce8; padding: 16px 0; }\n  .mohana-pdp details:last-of-type { border-bottom: 1px solid #d5dce8; }\n  .mohana-pdp summary { cursor: pointer; font-weight: 600; font-size: 1.02rem; letter-spacing: 0.015em; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 6px 0; color: #1f1f1f; }\n  .mohana-pdp summary::-webkit-details-marker { display: none; }\n  .mohana-pdp summary::after { content: \"+\"; color: #4a6fa5; font-size: 1.5rem; font-weight: 300; line-height: 1; transition: transform 0.25s ease; }\n  .mohana-pdp details[open] summary::after { content: \"−\"; }\n  .mohana-pdp details \u003e *:not(summary) { margin-top: 14px; }\n  .mohana-pdp .spec-table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 0.93rem; }\n  .mohana-pdp .spec-table td { padding: 11px 12px; border-bottom: 1px solid #e6ecf5; text-align: left; vertical-align: top; }\n  .mohana-pdp .spec-table td:first-child { font-weight: 600; width: 40%; color: #3a3a3a; }\n  .mohana-compare-wrap { border: 1px solid #d8e1ed; border-radius: 14px; overflow: hidden; margin: 16px 0 8px; background: #fff; }\n  .mohana-compare-wrap .compare-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }\n  .mohana-compare-wrap .compare-table th, .mohana-compare-wrap .compare-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid #e9eef7; border-right: 1px solid #e9eef7; vertical-align: middle; }\n  .mohana-compare-wrap .compare-table th:last-child, .mohana-compare-wrap .compare-table td:last-child { border-right: none; }\n  .mohana-compare-wrap .compare-table tr:last-child td { border-bottom: none; }\n  .mohana-compare-wrap .compare-table thead th { background: #dde4f0; color: #1f2b40; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.78rem; }\n  .mohana-compare-wrap .compare-table thead th.mohana-head { background: #b8c8de; color: #1a2335; }\n  .mohana-compare-wrap .compare-table td.mohana-col { background: #f4f7fb; color: #2c3a55; font-weight: 600; }\n  .mohana-compare-wrap .compare-table td.feature-label { font-weight: 500; color: #3a3a3a; }\n  @media (max-width: 640px) { .mohana-compare-wrap { overflow-x: auto; } .mohana-compare-wrap .compare-table { min-width: 560px; } }\n  .mohana-pdp h3 { font-size: 0.98rem; margin: 18px 0 6px; font-weight: 600; color: #2b2b2b; }\n  .mohana-pdp a { color: #1f2b40; text-decoration: underline; text-underline-offset: 3px; }\n  .mohana-pdp .price-line { color: #3f5172; font-style: italic; font-size: 0.92rem; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"mohana-pdp\"\u003e\n\n  \u003cp\u003e\u003cstrong\u003eA 3.5-carat fancy blue lab grown diamond, cushion-cut and flanked by two trapezoid accents — handcrafted to order.\u003c\/strong\u003e The Trilogy pairs the rarity of a blue cushion with the architecture of a three stone setting, in your choice of solid gold or platinum.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3.5ct blue center\u003c\/strong\u003e — Fancy blue lab grown diamond, VS clarity\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCushion cut\u003c\/strong\u003e — chunky facets, soft pillow silhouette, classic romantic glow\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSide stones:\u003c\/strong\u003e Two trapezoid accent diamonds (0.60 ct each, 1.20 ct total)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBand width:\u003c\/strong\u003e 2.5mm — balanced for a 3.5ct three stone center\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIGI® or GIA® certified\u003c\/strong\u003e — independent grading report included\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eYour choice of metal:\u003c\/strong\u003e 10K, 14K, 18K solid gold or platinum\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFree worldwide insured shipping\u003c\/strong\u003e + lifetime warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp class=\"price-line\"\u003eMade to order in 1–2 weeks · 30-day returns · Starting at $4150.00\u003c\/p\u003e\n\n  \u003cdiv class=\"mohana-cta-card\" style=\"border:1px solid #d8e1ed;border-radius:14px;background:#f4f7fb;color:#2c3a55;padding:18px 22px;margin:16px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;\"\u003e\n\u003cdiv style=\"flex:1;min-width:220px;\"\u003e\n\u003cstrong style=\"display:block;font-size:1.02rem;margin-bottom:4px;\"\u003eHave questions about this ring?\u003c\/strong\u003e\u003cspan style=\"font-size:0.93rem;color:#555;\"\u003eTalk to a real diamond expert — we typically respond within 24 hours.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ca href=\"\/pages\/contact-us\" target=\"_blank\" rel=\"noopener\" style=\"background:#b8c8de;color:#1a2335;padding:11px 26px;border-radius:8px;text-decoration:none;font-weight:600;white-space:nowrap;font-size:0.95rem;\"\u003eContact us →\u003c\/a\u003e\n\u003c\/div\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eFull Specifications\u003c\/summary\u003e\n    \u003cdiv class=\"mohana-compare-wrap\"\u003e\n      \u003ctable class=\"compare-table\"\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"mohana-head\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eCenter Stone\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003e3.5 ct Lab Grown Diamond, Fancy Blue, Cushion, VS Clarity, Excellent Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eCenter Stone Size\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003e9x9mm · \u003ca href=\"https:\/\/www.mohanajewels.com\/pages\/diamond-size-guide\" target=\"_blank\" rel=\"noopener\"\u003eDiamond size guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eSetting\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eThree Stone\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eSide Stones\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eTwo trapezoid lab grown diamonds — 0.60 ct each (1.20 ct total)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eTotal Carat Weight\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003e4.70 ct (3.5 ct center + 1.20 ct accents)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eBand Width\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eMetal Options\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003e10K, 14K, 18K Solid Gold, Platinum Pure\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eMetal Colors\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eYellow, Rose, White Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eCertification\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eIGI® or GIA® diamond grading report\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eProduction\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eHandcrafted to order — 1–2 weeks\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"feature-label\"\u003eIncluded\u003c\/td\u003e\n\u003ctd class=\"mohana-col\"\u003eFree insured worldwide shipping, lifetime warranty, 30-day returns\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy Mohana\u003c\/summary\u003e\n    \u003cp\u003eFor couples who want a real, certified diamond crafted to their exact specifications — without the retail markup of a national chain.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMade to order, not pulled from inventory\u003c\/strong\u003e — every ring is handcrafted to your stone, finger size, and metal choice over 1–2 weeks. Your ring has never been worn or sat in a display case.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDirect-from-workshop pricing\u003c\/strong\u003e — you pay for the diamond, the metal, and the craftsmanship. No retail floor, no franchise markup, no middleman.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eEvery center stone IGI® or GIA® certified\u003c\/strong\u003e — independent grading report ships with the ring. Verify the specifications directly on the IGI or GIA portal.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCustom variations welcome\u003c\/strong\u003e — different carat, shape, metal, or setting? Our craft team can quote any reasonable modification before production begins.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eReal human concierge\u003c\/strong\u003e — contact us directly for diamond questions, sizing help, or custom requests. We respond personally — not via bot.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eAbout Blue Lab Grown Diamonds\u003c\/summary\u003e\n    \u003cp\u003eBlue diamonds are among the most coveted natural gems in history. The 45.52-carat Hope Diamond (Smithsonian, ~$200–250M estimated value), the 14.62-carat Oppenheimer Blue (sold for $57.5M, then the most expensive diamond per carat ever auctioned), and the Wittelsbach-Graff Blue are among the most legendary. Natural fancy blue diamonds typically sell for hundreds of thousands per carat. Lab grown technology now makes blue diamonds accessible without that premium.\u003c\/p\u003e\n\u003cp\u003eMohana's blue lab grown diamonds are \u003cstrong\u003echemically, optically, and physically identical to mined blue diamonds\u003c\/strong\u003e — graded by the same IGI and GIA laboratories. The blue color comes from trace boron in the carbon lattice (the same mechanism as in natural blue diamonds, including the Hope), is part of the diamond's atomic structure, and will never fade.\u003c\/p\u003e\n\u003cp\u003eBlue diamonds pair beautifully with white gold and platinum (cool-on-cool, lets the blue read at maximum saturation) or with yellow gold for a striking warm\/cool contrast. Explore the full \u003ca href=\"\/collections\/blue-color\"\u003eblue diamond collection\u003c\/a\u003e.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\n\n    \u003ch3\u003eAre blue lab grown diamonds real diamonds?\u003c\/h3\u003e\n    \u003cp\u003eYes. Lab grown blue diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance as mined blue diamonds. Every Mohana blue diamond is certified by IGI or GIA.\u003c\/p\u003e\n\n    \u003ch3\u003eHow many side stones does this ring have?\u003c\/h3\u003e\n    \u003cp\u003eTwo trapezoid lab grown diamonds — 0.60 ct each (1.20 ct total weight). For exact stone count on your specific configuration, our craft team can confirm before production — contact \u003ca href=\"\/pages\/contact-us\"\u003ecustomer support\u003c\/a\u003e.\u003c\/p\u003e\n\n    \u003ch3\u003eWhat is the band width of this ring?\u003c\/h3\u003e\n    \u003cp\u003eThe band (around your finger) measures 2.5mm wide. At 2.5mm the band balances the visual weight of a 3.5-carat cushion center in the three stone setting — slim enough to wear daily, substantial enough to hold the design securely. The band width is consistent across all metal options.\u003c\/p\u003e\n\n    \u003ch3\u003eHow much does a 3.5 carat blue lab grown diamond engagement ring cost?\u003c\/h3\u003e\n    \u003cp\u003eThe Mohana Trilogy starts at $4150.00 in 10K solid gold. A comparable natural fancy blue 3.5-carat diamond would cost $500,000 to $3M+ — if available at all.\u003c\/p\u003e\n\n    \u003ch3\u003eWill the blue color fade over time?\u003c\/h3\u003e\n    \u003cp\u003eNo. The blue color in a lab grown blue diamond comes from trace boron in the carbon lattice — part of the diamond's atomic structure, not a treatment. It will not fade.\u003c\/p\u003e\n\n    \u003ch3\u003eCan this ring be resized?\u003c\/h3\u003e\n    \u003cp\u003eYes — complimentary resizing within the first year. Full eternity bands are the exception due to their continuous diamond setting.\u003c\/p\u003e\n\n    \u003ch3\u003eWhat is a three stone setting?\u003c\/h3\u003e\n    \u003cp\u003eA three-stone setting flanks the center diamond with two complementary side stones — often symbolizing past, present, and future. The trapezoid (tapered-baguette) shape of the Trilogy's side stones gives the cushion center a clean, architectural frame.\u003c\/p\u003e\n\n    \u003ch3\u003eWhat's included with my ring?\u003c\/h3\u003e\n    \u003cp\u003eThe IGI® or GIA® grading report, a signed Mohana certificate of authenticity, free worldwide insured shipping, a lifetime craftsmanship warranty, a 30-day return window, and complimentary resizing within the first year.\u003c\/p\u003e\n\n    \u003ch3\u003eHow long does it take to make and ship?\u003c\/h3\u003e\n    \u003cp\u003eEach ring is handcrafted to order in 1–2 weeks, then ships free worldwide with full insurance.\u003c\/p\u003e\n\n    \u003ch3\u003eCan I customize this ring?\u003c\/h3\u003e\n    \u003cp\u003eYes — contact our team through \u003ca href=\"\/pages\/contact-us\"\u003ecustomer support\u003c\/a\u003e to request a custom variation in a different carat, shape, or metal combination.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Mohana Jewels","offers":[{"title":"10K Solid Gold \/ Yellow Gold","offer_id":54165175664924,"sku":null,"price":4150.0,"currency_code":"USD","in_stock":true},{"title":"10K Solid Gold \/ White Gold","offer_id":54165175697692,"sku":null,"price":4150.0,"currency_code":"USD","in_stock":true},{"title":"10K Solid Gold \/ Rose Gold","offer_id":54165175730460,"sku":null,"price":4150.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ Yellow Gold","offer_id":54165175763228,"sku":null,"price":4350.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ White Gold","offer_id":54165175795996,"sku":null,"price":4350.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ Rose Gold","offer_id":54165175828764,"sku":null,"price":4350.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ Yellow Gold","offer_id":54165175861532,"sku":null,"price":4550.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ White Gold","offer_id":54165175894300,"sku":null,"price":4550.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ Rose Gold","offer_id":54165175927068,"sku":null,"price":4550.0,"currency_code":"USD","in_stock":true},{"title":"Platinum Pure \/ Platinum Pure","offer_id":54165175959836,"sku":null,"price":4550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/6576\/7708\/files\/3-5-carat-blue-lab-grown-diamond-engagement-ring-cushion-cut-three-190.webp?v=1780288224","url":"https:\/\/www.mohanajewels.com\/products\/3-5-carat-blue-lab-grown-diamond-engagement-ring-cushion-cut-three-stone-trilogy","provider":"Mohana Jewels - Luxury ","version":"1.0","type":"link"}