Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it reveals a striking balance of drama and elegance—its tapered points drawing the eye along the finger. This semi-set halo engagement ring in platinum offers a refined foundation, crafted with precision in our Williamsburg studio to cradle a 12 x 6 mm marquise stone of your choosing.

The platinum band is hand-finished to a smooth, comfort fit that wears effortlessly day to day, while the halo setting enhances the diamond’s brilliance without adding bulk. Each prong and bezel is meticulously inspected to ensure durability and a low-profile silhouette that slips easily beneath gloves or rings stacked alongside it.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, combining clarity and sustainability in every facet.

Designed for those who appreciate architectural grace and subtle statement, this mounting suits slender to medium fingers and complements a variety of personal styles, from minimalist to layered looks.

Should you wish to adjust the fit, resizing is available with care to maintain the integrity of the setting. Typical lead time for completion is four to six weeks, allowing for thoughtful customization.

Explore this semi-set halo marquise ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based atelier specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets refined design in every piece we create.

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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