Lab-Grown Diamond Engagement Ring

When light catches the elongated points of a marquise diamond, it creates a striking silhouette that both sharpens and softens the hand’s natural lines. This semi-set platinum solitaire mounting is crafted to cradle a 12 x 6 mm marquise stone with precision, offering a secure, low-profile setting that sits close to the finger for everyday ease.

Forged in platinum, the band balances durability with a refined weight, finished to a smooth comfort fit that slips on effortlessly. The prongs are engineered to hold the stone firmly while minimizing metal visibility, allowing the diamond’s tapered drama to command attention without bulk.

Each piece reflects a commitment to ethical jewelry through the use of lab-grown diamonds, reducing environmental impact without compromising brilliance or clarity.

Designed for those who appreciate sleek, architectural elegance, this mounting suits slender to medium finger sizes and pairs well with stacking bands or a wedding ring of complementary profile. Its low height ensures glove-friendly wear and daily practicality.

Should you need resizing, our Brooklyn studio offers expert adjustments to maintain the integrity of the setting without delay.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical sourcing and thoughtful design tailored to New York City’s discerning clients.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

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