Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set halo engagement ring foundation in polished platinum offers a secure, low-profile frame designed to showcase a 12 x 6 mm center stone with architectural drama and subtle brilliance.

Crafted for everyday wear, the platinum band balances strength with refined comfort, its smooth interior contour easing onto the finger. The halo setting is engineered to sit close to the hand, minimizing snagging while amplifying the diamond’s presence through a delicate surround of smaller stones.

Each piece reflects Haejin Jewelry’s commitment to ethical sourcing, featuring lab-grown diamonds that reduce environmental impact without compromising clarity or fire. The semi-set design invites your choice of a marquise cut, known for elongating the finger and adding a distinctive, elegant edge.

Ideal for those seeking a ring that pairs well with stacking bands or stands confidently alone, this mounting suits a variety of lifestyles—glove-friendly and crafted for daily rhythm. Resizing is available to ensure a precise fit, with care instructions tailored to preserve the platinum’s luster and the halo’s sparkle.

Explore this semi-set halo in our Williamsburg studio or begin your custom design 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 modern design sensibility rooted in New York City’s creative spirit.

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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