{"product_id":"3ct-marquise-lab-grown-diamond-solitaire-engagement-ring","title":"3.00ct Marquise Lab Grown Diamond Vintage Solitaire Engagement Ring | IGI Certified | Unii Jewels","description":"\u003cp\u003e\u003cspan\u003eTimeless solitaire simplicity meets vintage-inspired character in the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUnii Jewels 3.00ct Marquise Lab Grown Diamond Vintage Solitaire Engagement Ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt the heart of this design is a substantial \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.00ct Marquise Lab Grown Diamond\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, offered in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eD-E-F color and VVS-VS clarity ranges\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eExcellent cut\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e specification and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIGI certification\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBecause the complete \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.00CT diamond weight is concentrated in a single Marquise centerpiece\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ring maintains a strong solitaire identity. Rather than relying on additional side diamonds, the design allows the elongated shape, pointed ends and impressive scale of the Marquise to create the primary visual statement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVintage styling\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e adds character around this dominant center while the refined \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm band\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e keeps the overall proportions elegant.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e💎 Diamond Details\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTotal Diamond Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.00CT\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDiamond Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lab Grown Diamond\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDiamond Shape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Marquise\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCarat Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.00CT\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDiamond Color:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e D-E-F\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDiamond Clarity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e VVS-VS\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCut:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excellent\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCertification:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e IGI Certified\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e💍 Ring Details\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStyle \/ Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vintage\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vintage Solitaire Engagement Ring\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eBand Width:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2mm\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMetal Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Silver, Gold, Platinum\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eWear:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engagement, wedding, anniversary, special occasions and fine-jewelry wear\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eThe Design Story — Vintage Character Around One Hero Diamond\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFrom a jewelry designer's perspective, a Marquise diamond already possesses an unusually strong silhouette.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts elongated body establishes a clear north-to-south direction, while the two tapered tips give the stone a recognizable pointed outline.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.00ct\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, those characteristics become even more prominent.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThat means the ring does not require multiple additional diamonds to establish its identity. Instead, the solitaire composition allows the Marquise itself to become the design's central architectural feature.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy the 3.00ct Marquise Commands Attention\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe full \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.00CT total diamond weight\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e belongs to one center stone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThere is no supplied side-diamond weight dividing the visual emphasis.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe hierarchy therefore remains exceptionally clean:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3.00ct Marquise → Vintage Design → 2mm Band\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom a distance, the Marquise provides the immediate visual impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCloser viewing can then reveal the vintage-inspired character of the surrounding ring design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis creates two levels of visual appreciation without weakening the solitaire concept.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMarquise Geometry — Length, Curves \u0026amp; Points\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Marquise silhouette combines contrasting geometric characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts center has softly curved sides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts ends taper into sharp points.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts body is elongated rather than compact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis creates a shape that feels both refined and dramatic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe symmetry of the two pointed ends provides balance, while the extended proportions create a strong vertical impression.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a vintage solitaire, this geometry works particularly well because decorative ring elements can surround the center without obscuring its unmistakable outline.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Vintage + Solitaire Is an Interesting Combination\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA modern solitaire often reduces the surrounding design to the simplest possible form.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA vintage solitaire can take a different approach.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe diamond remains the only principal stone, but the ring itself can contribute additional decorative personality through its metal architecture and vintage-inspired detailing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThat means the design can feel elaborate without requiring a Halo or additional side diamonds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe result preserves the fundamental solitaire idea:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOne Diamond. One Dominant Focal Point.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBut it expresses that idea through a more decorative design language.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy the 2mm Band Works\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm band\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides an effective visual counterbalance to a 3.00ct center.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe substantial Marquise already supplies scale and presence, so the band does not need to compete with it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInstead, the refined width allows the diamond to appear visually dominant while maintaining enough structure to support the overall ring design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe progression remains:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRefined Band → Vintage Character → Large Marquise Center\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Choose This 3ct Vintage Marquise Design?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis design is particularly appealing for someone who wants the unmistakable prominence of a large Marquise diamond but prefers something more expressive than a completely minimal solitaire.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThere are no supplied side diamonds altering the outline or dividing attention.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.00ct Marquise remains completely responsible for the diamond presence\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, while the vintage styling gives the ring its individual character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompared with a Halo, the recognizable Marquise outline remains visually independent.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompared with a Three Stone design, there is no secondary diamond hierarchy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnd compared with a plain contemporary solitaire, the Vintage design introduces a more decorative personality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe result is a distinctive 3.00ct Vintage Solitaire Engagement Ring where elongated Marquise geometry, a refined 2mm foundation and vintage-inspired design language work together without taking attention away from the single hero diamond.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unii Jewels","offers":[{"title":"925 Silver","offer_id":67221615083769,"sku":null,"price":117314.0,"currency_code":"INR","in_stock":true},{"title":"10K White Gold","offer_id":67221615116537,"sku":null,"price":154206.0,"currency_code":"INR","in_stock":true},{"title":"10K Yellow Gold","offer_id":67221615149305,"sku":null,"price":154206.0,"currency_code":"INR","in_stock":true},{"title":"10K Rose Gold","offer_id":67221615182073,"sku":null,"price":154206.0,"currency_code":"INR","in_stock":true},{"title":"14K White Gold","offer_id":67221615214841,"sku":null,"price":175752.0,"currency_code":"INR","in_stock":true},{"title":"14K Yellow Gold","offer_id":67221615247609,"sku":null,"price":175752.0,"currency_code":"INR","in_stock":true},{"title":"14K Rose Gold","offer_id":67221615280377,"sku":null,"price":175752.0,"currency_code":"INR","in_stock":true},{"title":"18K White Gold","offer_id":67221615313145,"sku":null,"price":200122.0,"currency_code":"INR","in_stock":true},{"title":"18K Yellow Gold","offer_id":67221615345913,"sku":null,"price":200122.0,"currency_code":"INR","in_stock":true},{"title":"18K Rose Gold","offer_id":67221615378681,"sku":null,"price":200122.0,"currency_code":"INR","in_stock":true},{"title":"Platinum","offer_id":67221615411449,"sku":null,"price":168449.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/7333\/5033\/files\/3-marquise-lab-grown-diamond-vintage-solitaire-ring.webp?v=1790406063","url":"https:\/\/uniijewels.com\/products\/3ct-marquise-lab-grown-diamond-solitaire-engagement-ring","provider":"Unii Jewels","version":"1.0","type":"link"}