Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that seems to stretch beyond the finger. This semi-set engagement ring foundation in 18K yellow gold offers a sleek, modern-minimal frame designed to highlight a 12 x 6 mm marquise center stone, known for its tapered drama and elegant elongation.

Crafted with precision in Williamsburg, Brooklyn, the band’s smooth finish and subtle accents create a refined structure that balances clarity with confident geometry. The low-profile setting ensures daily wearability without catching, while the warm glow of yellow gold complements the stone’s sharp facets.

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

Ideal for those who appreciate architectural lines and a statement silhouette, this mounting suits slender to medium finger sizes and pairs beautifully with stackable bands or a comfort-fit wedding band. Its design accommodates glove-friendly wear and everyday life.

Resizing is available to ensure a precise fit, and the semi-set nature invites you to select a marquise diamond that resonates personally, with expert guidance from our Brooklyn studio.

Explore this foundation in person at our Williamsburg studio or begin your custom design journey online, where expert craftsmanship meets thoughtful, modern romance.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for a lifetime.

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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