Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated marquise shape, casting a slender, dramatic silhouette that feels both bold and intimate on the hand. This three-stone semi-set engagement ring features a 10 x 5 mm marquise center, designed to frame your chosen diamond with two delicately crafted side stones.

Hand-forged in 14K yellow gold, the band offers a warm glow that complements the sharp elegance of the marquise cut. The setting balances secure prongs with a low-profile design, ensuring daily wearability without sacrificing sparkle. Each curve and angle is refined in our Williamsburg studio, where artisan techniques meet modern precision.

Choosing a lab-grown diamond here means embracing clarity and sustainability without compromise—ethical jewelry that honors both craft and conscience.

The slender band fits comfortably, ideal for those who appreciate a statement ring that layers well with wedding bands or stackable pieces. Its semi-set nature invites you to select a center stone that reflects your personal story, with expert guidance available to ensure perfect proportions.

Resizing is straightforward, handled carefully in-studio to maintain the integrity of the setting and metal finish.

Visit us in Williamsburg or explore custom design options online to bring this distinctive marquise engagement ring to life.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for everyday elegance.

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.