{"product_id":"3-carat-round-cut-lab-grown-diamond-engagement-ring-catalina","title":"3 Carat Lab Grown Diamond Engagement Ring – Round Cut Halo | Catalina","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: #6a6a6a; position: absolute; left: 0; top: 0; }\n  .mohana-pdp details { border-top: 1px solid #e5e5e5; padding: 16px 0; }\n  .mohana-pdp details:last-of-type { border-bottom: 1px solid #e5e5e5; }\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: #6a6a6a; 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 #ededed; 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 #d8d8d8; 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 #e5e5e5; border-right: 1px solid #e5e5e5; 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: #ececec; color: #2a2a2a; 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: #b5b5b5; color: #1a1a1a; }\n  .mohana-compare-wrap .compare-table td.mohana-col { background: #fafafa; color: #2a2a2a; 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: #1a1a1a; text-decoration: underline; text-underline-offset: 3px; }\n  .mohana-pdp .price-line { color: #555555; 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-carat lab grown diamond engagement ring, round-cut and set in a halo design — handcrafted to order.\u003c\/strong\u003e The Catalina pairs the brilliance of a colorless lab grown diamond with the halo design, in your choice of solid gold or platinum.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3ct white center\u003c\/strong\u003e — Colorless (D-F) lab grown diamond, VS clarity\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRound cut\u003c\/strong\u003e for exceptional sparkle and timeless symmetry\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSide stones:\u003c\/strong\u003e Approximately 16 pavé round brilliants (~0.5 ct total)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBand width:\u003c\/strong\u003e 4.5mm — substantial band to support the 3ct 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 $2899.00\u003c\/p\u003e\n\n  \u003cdiv class=\"mohana-cta-card\" style=\"border:1px solid #d8d8d8;border-radius:14px;background:#fafafa;color:#2a2a2a;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:#b5b5b5;color:#1a1a1a;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 ct Lab Grown Diamond, Colorless (D-F), Round, 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\"\u003e9 mm · \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\"\u003eHalo\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\"\u003eApproximately 16 pavé round brilliants (~0.5 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\"\u003e3 ct center (accent carat varies by configuration)\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\"\u003e4.5mm\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 White Lab Grown Diamonds\u003c\/summary\u003e\n    \u003cp\u003e\"White\" diamonds — the classic colorless to near-colorless grades (D through J on the GIA scale) — are the most iconic and timeless choice for an engagement ring. They reflect light cleanly across the full visible spectrum, producing the brilliance and fire that defines a diamond. Lab grown technology delivers the same D-F colorless excellence as the most premium mined diamonds, at a fraction of the cost — making top-tier 2-ct, 3-ct, and 4-ct stones realistic for the modern proposal budget.\u003c\/p\u003e\n    \u003cp\u003eMohana's white lab grown diamonds are \u003cstrong\u003echemically, optically, and physically identical to mined diamonds\u003c\/strong\u003e — graded by the same IGI and GIA laboratories using the same 4Cs scales (Carat, Clarity, Color, Cut). Every stone receives an independent grading report you can verify, and the optical performance — brilliance, fire, scintillation — is indistinguishable from a mined diamond of the same cut grade.\u003c\/p\u003e\n    \u003cp\u003eColorless diamonds pair beautifully with \u003ca href=\"\/collections\/halo-pave-setting-ring\"\u003ewhite gold or platinum settings\u003c\/a\u003e, where the cool metal complements the colorless stone for a uniform, classic look. For a warmer, vintage-inspired aesthetic, choose yellow or rose gold — the contrast frames the diamond and highlights its brilliance. Explore the full \u003ca href=\"\/collections\/white-color\"\u003ecolorless 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 white lab grown diamonds real diamonds?\u003c\/h3\u003e\n    \u003cp\u003eYes. Lab grown diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance and fire as mined diamonds. Every Mohana diamond is certified by IGI or GIA using the same 4Cs scales.\u003c\/p\u003e\n\n    \u003ch3\u003eHow many side stones does this ring have?\u003c\/h3\u003e\n    \u003cp\u003eApproximately 16 pavé round brilliants (~0.5 ct total). 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 4.5mm wide. At 4.5mm the band balances the visual weight of a 3-carat center in the halo 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 carat lab grown diamond engagement ring cost?\u003c\/h3\u003e\n    \u003cp\u003eThe Mohana Catalina starts at $2899.00 in 10K solid gold and scales up with 14K, 18K, and platinum. A mined diamond of comparable size and colorless grade would cost $8,000 to $40,000+.\u003c\/p\u003e\n\n    \u003ch3\u003eWhat's the color grade of the center diamond?\u003c\/h3\u003e\n    \u003cp\u003eThe center stone is colorless (D-F on the GIA color scale) — the highest grade, with no detectable color even to a trained eye under ideal lighting. The 4Cs grading report is included with every order.\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 halo setting?\u003c\/h3\u003e\n    \u003cp\u003eA halo of small diamonds surrounds the center stone, amplifying its visual size and adding sparkle from every angle.\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":51930001506588,"sku":"MJ-6673-NAT-10K","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"10K Solid Gold \/ White Gold","offer_id":51930001473820,"sku":"MJ-6674-NAT-10K","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"10K Solid Gold \/ Rose Gold","offer_id":51930001539356,"sku":"MJ-6675-NAT-10K","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ Yellow Gold","offer_id":51930001604892,"sku":"MJ-6676-NAT-14K","price":3099.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ White Gold","offer_id":51930001572124,"sku":"MJ-6677-NAT-14K","price":3099.0,"currency_code":"USD","in_stock":true},{"title":"14K Solid Gold \/ Rose Gold","offer_id":51930001637660,"sku":"MJ-6678-NAT-14K","price":3099.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ Yellow Gold","offer_id":51930001703196,"sku":"MJ-6679-NAT-18K","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ White Gold","offer_id":51930001670428,"sku":"MJ-6680-NAT-18K","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"18K Solid Gold \/ Rose Gold","offer_id":51930001735964,"sku":"MJ-6681-NAT-18K","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"Platinum Pure \/ Platinum Pure","offer_id":51930001768732,"sku":"MJ-6682-NAT-PLA","price":3299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/6576\/7708\/files\/3-carat-lab-grown-diamond-engagement-ring-round-cut-halo-catalina-801.webp?v=1778899986","url":"https:\/\/www.mohanajewels.com\/products\/3-carat-round-cut-lab-grown-diamond-engagement-ring-catalina","provider":"Mohana Jewels - Luxury ","version":"1.0","type":"link"}