Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the length of the finger with quiet drama. This semi-set halo engagement ring foundation in 18K yellow gold awaits your choice of a 10 x 5 mm marquise center, designed to amplify the stone’s graceful, vintage-inspired profile.

Handcrafted in our Williamsburg studio, the band is shaped for comfort and daily wear, with a low-profile halo setting that frames the center stone without overwhelming it. Each curve and prong is meticulously finished to a smooth, tactile polish, ensuring the ring feels as refined as it looks.

Our commitment to ethical jewelry shines through the exclusive use of lab-grown diamonds, offering clarity and brilliance with a smaller environmental footprint.

The slender band suits a variety of hand shapes, especially elongating shorter fingers, and its halo design pairs beautifully with stackable bands or a wedding ring. Its modest height makes it glove-friendly and ideal for everyday life.

Should you need resizing, our studio provides precise adjustments to maintain the ring’s integrity and comfort.

Visit us in Williamsburg to explore this semi-set halo or begin your custom design journey online—crafted for those who appreciate thoughtful detail and Brooklyn authenticity.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical values 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.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.