Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that draws the eye along the finger. This semi-set three-stone ring invites your choice of a 7 x 3.5 mm lab-grown marquise center, framed by two delicate side stones that balance brilliance with architectural grace.

Crafted from 18K white gold, the mounting features a refined low-profile setting that nestles close to the skin, offering a comfortable fit for daily wear. Each prong is hand-finished in our Williamsburg studio, ensuring precise alignment and a secure hold while maintaining an elegant openness that maximizes light play.

Our commitment to ethical jewelry is reflected in the clarity and sustainability of the lab-grown diamond you select, reducing environmental impact without compromising on sparkle or character.

The slender shape of the marquise naturally elongates the hand, making this ring a graceful choice for those who appreciate subtle drama and refined geometry. Its low profile and smooth shank make it easy to stack with other bands or wear solo with confidence.

Should you need resizing, our in-studio artisans handle adjustments with care, preserving the integrity of the setting and finish.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop 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 deep connection to New York City’s artisan 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.

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