Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that seems to stretch the hand with quiet elegance. This three-stone semi-set ring invites your choice of a 10 x 5 mm marquise center, framed by two smaller stones that balance brilliance with architectural grace.

Crafted from 18K white gold, the mounting is shaped and polished in our Williamsburg studio, where each prong is hand-finished to secure the stone low and close to the finger. The band’s gentle curve and moderate width ensure a comfort fit that wears seamlessly alongside wedding bands or stackable rings.

Our diamonds are lab-grown, offering a clarity and sparkle identical to mined stones while reflecting a commitment to sustainable, ethical jewelry practices.

This design suits those who appreciate a refined statement with a vintage-inspired edge, especially flattering on slender fingers or those seeking a ring that pairs well with gloves or daily wear. The low-profile setting keeps the ring practical without sacrificing presence.

Resizing is available to ensure a precise fit, with lead times typically spanning a few weeks to accommodate custom stone selection and finishing.

Explore this semi-set marquise ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a distinct local sensibility.

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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