Lab-Grown Diamond Engagement Ring

Light catches the elongated marquise diamond, its tapered points drawing the eye along a delicate halo of platinum. This engagement ring balances architectural drama with everyday grace, designed for the rhythm of daily life in Williamsburg.

Crafted in cool platinum, the setting secures a 6 x 3 mm marquise lab-grown diamond with a low-profile halo that enhances brilliance without adding bulk. The band’s smooth comfort fit and subtle height ensure it slips easily beneath gloves or stacks seamlessly with other bands. Each ring is meticulously hand-finished and inspected in our Brooklyn studio to meet exacting standards.

Our lab-grown diamond offers the clarity and sparkle of mined stones with a fraction of the environmental impact, reflecting a quiet commitment to ethical jewelry.

This ring suits those who appreciate a refined silhouette that elongates the finger while maintaining a practical, durable design for everyday wear.

Should you need a custom size, resizing is straightforward and handled with care by our in-house artisans.

Visit us in Williamsburg to experience this halo marquise ring firsthand or begin your custom design journey online with Haejin Jewelry’s expert guidance.

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.