Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a striking, tapered sparkle that draws the eye along the finger’s natural line. This semi-set engagement ring frame is crafted from 18K yellow gold, designed to cradle a 7 x 3.5 mm marquise center with subtle accent stones that enhance its refined profile.

The band’s low-profile setting ensures the ring sits close to the hand, minimizing snagging while offering a comfortable fit for everyday wear. Each curve is carefully polished to a smooth finish, reflecting the meticulous craftsmanship that defines our Williamsburg studio. The semi-set design invites you to select a lab-grown marquise diamond that meets your clarity and cut preferences, promising a personalized centerpiece.

Our commitment to ethical jewelry is reflected in the use of sustainably sourced metals and lab-grown diamonds, reducing environmental impact without compromising brilliance.

Ideal for those who appreciate a sleek silhouette and a ring that layers effortlessly with wedding bands or stackable styles. The narrow shape of the marquise complements slender fingers and elongates the hand, while the secure setting supports active lifestyles.

Should you need resizing or prefer a consultation on diamond selection, our Brooklyn studio offers expert guidance with transparent timelines and care advice.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online, where thoughtful craftsmanship meets modern romance.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and expert design converge in every piece.

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

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.