Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic shadow that dances across the hand. This semi-set three-stone ring invites you to select a 10 x 5 mm marquise center, its tapered points echoing a refined, vintage-inspired elegance.

Crafted from 18K white gold, the mounting balances strength with subtlety, featuring gently curved prongs that cradle side stones with artisan precision. The low-profile setting ensures the ring sits comfortably for daily wear, while the smooth band offers a secure, glove-friendly fit. Each piece is meticulously finished and inspected in our Williamsburg studio, where handcraft meets modern technique.

Our commitment to lab-grown diamonds means your ring carries a clarity and brilliance born from sustainable innovation, reflecting a mindful approach to fine jewelry.

This design suits those who appreciate architectural grace with a hint of classic romance, especially flattering on slender fingers or as part of a stack with complementary bands. The semi-set format allows you to personalize your center stone choice, ensuring a truly unique expression.

Resizing is available to ensure a perfect fit, with care instructions provided to maintain the ring’s luminous finish over time.

Explore this design in person at our Williamsburg studio or begin your custom journey online—crafted for life’s most intimate moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, combining expert craftsmanship with ethical sourcing and a deep connection to New York City’s artisanal heritage.

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.