Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a slender, shimmering shadow that feels both intimate and bold. This semi-set solitaire frame, crafted in 14K white gold, awaits your choice of a 5 x 3 mm marquise stone, its pointed ends echoing a quiet drama.

The band’s gentle curve and polished finish offer a subtle contrast to the diamond’s sharp geometry, designed for a low-profile fit that slips comfortably beneath daily gloves or alongside stackable rings. Each piece is meticulously hand-finished in our Williamsburg studio, ensuring smooth edges and a secure setting foundation.

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

Ideal for those who appreciate refined lines and a touch of vintage-inspired romance, this mounting suits slender fingers and those seeking a ring that balances presence with wearability.

Should you need adjustments, resizing is handled with care to maintain the band’s integrity and comfort fit.

Explore this semi-set marquise solitaire in person at our Brooklyn studio or begin your custom design journey online, where thoughtful craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry atelier specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and a deep connection to New York City’s creative spirit.

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.