Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it creates a striking interplay of brilliance and shadow that draws the eye along the finger’s natural line. This semi-set halo engagement ring foundation in polished platinum offers a secure, low-profile frame designed to showcase an 8 x 4 mm marquise center stone with architectural grace.

Crafted in Williamsburg, the platinum band is meticulously finished for a smooth, comfort fit that sits close to the hand, minimizing snagging during daily wear. The halo setting’s delicate pavé work enhances the diamond’s pointed shape while maintaining a subtle profile, ideal for stacking or pairing with a wedding band.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, combining sustainability with uncompromised clarity and sparkle. This mounting invites customization, allowing you to select a marquise stone that resonates personally, with expert guidance from our Brooklyn studio.

Designed for those who appreciate refined geometry and everyday elegance, this ring suits slender to medium finger shapes, its streamlined silhouette flattering a variety of hand sizes. The platinum’s durability supports an active lifestyle without sacrificing sophistication.

Resizing is available to ensure a precise fit, and our studio offers a pressure-free consultation to explore your ideal stone and setting combination. Lead times vary slightly depending on customization but are communicated clearly throughout the process.

Visit us in Williamsburg or begin your custom design journey online—experience how thoughtful craftsmanship and ethical sourcing converge in a ring made for your story. Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert design with sustainable values and local artistry.

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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