Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a sleek, confident line. This semi-set halo engagement ring invites you to select a 7 x 3.5 mm center stone, ready to be framed by a delicate circle of pavé diamonds that amplify its architectural grace.

Crafted in cool, enduring platinum, the mounting balances modern minimalism with structural clarity. The halo setting is designed low to the finger, ensuring a comfortable fit that slips easily beneath gloves or alongside stackable bands. Each curve and prong is meticulously finished in our Williamsburg studio, where precision meets quiet elegance.

Choosing a lab-grown diamond here means embracing a refined clarity and brilliance with a lighter environmental footprint—an ethical choice woven seamlessly into the ring’s story.

This style suits those who appreciate clean lines and subtle drama, especially flattering on slender fingers where the marquise shape elongates and refines the hand’s natural gestures.

Should you need resizing, our in-studio experts ensure adjustments maintain the ring’s perfect balance without compromising its integrity.

Visit us in Williamsburg to explore this semi-set halo or begin your custom design journey online—crafted for daily life, made to last.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local expertise shape every piece with care and clarity.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.