Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your hand, where a 12 x 6 mm marquise diamond catches light with a refined, tapered brilliance. This semi-set engagement ring offers a sleek 18K white gold band designed for everyday grace, its low-profile setting ensuring comfort beneath gloves or alongside stackable bands.

Crafted in Williamsburg, the band is meticulously finished to a smooth comfort fit, balancing durability with delicate elegance. The mounting’s clean lines and secure prongs provide technical assurance without excess height, making it ideal for active wearers who value both form and function.

Each lab-grown diamond reflects a commitment to ethical jewelry, reducing environmental impact while maintaining exceptional clarity and fire. The semi-set design invites you to select a center stone that resonates personally, allowing a custom expression within a trusted framework.

Its slender silhouette suits hands that appreciate subtle drama and modern geometry, especially flattering on longer fingers or those seeking a distinctive profile. Resizing is straightforward, handled in-studio with care to preserve the band’s integrity.

Explore this design in our Williamsburg studio or begin your custom journey online—where expert guidance meets Brooklyn craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for daily life and lasting meaning.

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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