Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a path of refined brilliance. This three-stone engagement ring in polished platinum frames a 10 x 5 mm marquise center with two delicately balanced side stones, each set low to the finger for everyday ease.

Crafted in Williamsburg, the ring’s sleek, modern-minimal design emphasizes clarity and architectural precision. The platinum band offers a cool, substantial feel with a comfort fit that wears smoothly beneath gloves or stacked alongside other bands. Each stone is securely bezel-set, showcasing the marquise’s signature dramatic shape while maintaining a low profile that resists snagging.

Our lab-grown diamonds deliver the same optical fire and structural integrity as mined stones, with a fraction of the environmental impact—an ethical choice without compromise.

This ring suits those who appreciate confident geometry and subtle sophistication, especially flattering on slender fingers where the marquise shape elongates the hand. Its balanced scale and secure setting make it an ideal daily companion.

Should you need a custom size, resizing is straightforward and handled in-studio with care.

Visit our Williamsburg studio to experience this ring firsthand or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings. Our commitment to ethical craftsmanship and thoughtful design reflects the spirit of New York City’s creative heart.

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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