Lab-Grown Diamond Engagement Ring

Imagine the subtle drama of a marquise diamond, its elongated silhouette catching light with a graceful taper that visually lengthens the finger. This semi-set platinum mounting awaits your choice of a 12 x 6 mm center stone, designed to cradle the gem securely while maintaining a sleek, low-profile presence.

Crafted in platinum for enduring strength and a cool, luminous finish, the setting features delicate accent details that enhance the center without overpowering it. The band’s smooth comfort fit ensures it rests naturally for daily wear, while the low-profile design slips easily beneath gloves or sleeves.

Each piece is meticulously finished and inspected in our Williamsburg studio, reflecting a commitment to precision and subtlety. The lab-grown diamond option aligns with a modern ethical approach, offering clarity and brilliance with a reduced environmental footprint.

This mounting suits those who appreciate architectural elegance paired with practical wearability—ideal for hands that favor elongated shapes and a refined silhouette. Its adaptable design invites stacking or solo wear, balancing presence with discretion.

Should you need resizing or guidance on selecting the perfect marquise stone, our team is ready to assist with care and expertise.

Visit us in Williamsburg or explore custom design online to bring your vision to life with a ring that embodies thoughtful 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.

Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.