Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching the light as it elongates the hand with a quiet, tapered elegance. This semi-set halo engagement ring foundation in polished platinum invites your choice of a 9 x 4.5 mm center stone, framed by a delicate halo that amplifies brilliance without overwhelming the design.

Crafted in Williamsburg, the platinum band offers a cool, substantial feel with a low-profile setting that rests comfortably for daily wear. The halo setting is meticulously finished to enhance sparkle while maintaining a sleek silhouette, ideal for stacking or pairing with a wedding band.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that combine clarity and conscience in one refined expression.

Designed for those who appreciate subtle drama and refined craftsmanship, this mounting suits hands that favor elongated shapes and a graceful presence. Its comfort fit ensures ease beneath gloves or alongside other rings.

Should you wish to adjust sizing or explore center stone options, our Brooklyn studio offers personalized consultations to guide your choices with care and expertise.

Visit us in Williamsburg or begin your custom design journey online to bring this marquise halo vision to life with Haejin Jewelry’s signature blend of ethical craftsmanship and Brooklyn authenticity.

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.