Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it sculpts a striking beam that draws the eye along the finger’s natural line. This semi-set halo engagement ring in platinum frames a 7 x 3.5 mm marquise center with a delicate circle of pavé stones, enhancing brilliance without adding bulk.

Crafted for everyday wear, the low-profile setting keeps the diamond close to the hand, reducing snagging while maintaining a confident presence. The platinum band offers a cool, substantial feel with a smooth comfort fit, polished to a subtle sheen that complements the stone’s sharp geometry.

Each piece is meticulously finished in our Williamsburg studio, where precision meets quiet strength—ensuring the halo’s pavé is secure and the prongs cradle the marquise with technical assurance.

Our lab-grown diamonds provide the same optical purity and sparkle as mined stones, with a lighter environmental footprint and traceable origins.

This ring suits those who appreciate architectural elegance paired with practical design—ideal for slender fingers or as a standout solitaire alternative. Its streamlined profile layers well with wedding bands or stackable rings without overwhelming.

Should you need resizing, our in-house experts adjust the platinum band with care to preserve its integrity and fit.

Explore this design in person at our Williamsburg studio or begin your custom journey online, where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry is a Brooklyn-based 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 beauty.

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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