Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it casts a striking, tapered brilliance that feels both bold and intimate. This semi-set halo engagement ring foundation in platinum offers a sculptural frame designed to amplify a 7 x 3.5 mm marquise center stone, cradled by a delicate halo that enhances its fiery sparkle.

Crafted in our Williamsburg studio, the platinum band is hand-finished to a smooth, comfort-fit profile that sits low against the finger, making it ideal for everyday wear without sacrificing elegance. The halo setting is meticulously constructed to balance protection with maximum light exposure, ensuring your diamond’s facets catch every ray.

Each piece reflects our commitment to ethical jewelry: the ring is designed exclusively for a lab-grown diamond, reducing environmental impact while delivering exceptional clarity and brilliance.

This design suits those who appreciate architectural lines with a touch of vintage-inspired drama, especially flattering on slender fingers where the marquise shape elongates the hand. Its low-profile setting pairs effortlessly with stacking bands or a wedding ring, and the platinum’s durability supports a lifetime of wear.

Should you need resizing or wish to explore center stone options, our in-studio consultations in Williamsburg provide a pressure-free experience tailored to your vision and timeline.

Discover how this semi-set halo ring can become your signature piece by visiting our Brooklyn workshop or starting your custom design online.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship and ethical sourcing meet the spirit of local artisan design.

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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