Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, shimmering shadow that feels both intimate and striking. This semi-set engagement ring invites you to choose a 7 x 3.5 mm marquise stone, whose tapered points and graceful curves evoke a quiet drama, elongating the finger with refined elegance.

Crafted in warm 18K yellow gold, the mounting is designed with a delicate solitaire setting that balances visibility and security. The slender prongs cradle the stone while allowing light to flood every facet, enhancing the diamond’s signature brilliance. The band’s smooth finish and moderate width ensure a comfortable fit for daily wear, while its low-profile design slips easily beneath gloves or alongside stackable bands.

Each ring reflects our commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and sparkle without compromise. This choice supports sustainability with a lighter environmental footprint, aligned with thoughtful craftsmanship in our Williamsburg studio.

Ideal for those who appreciate subtle statement pieces, this ring complements slender fingers and suits anyone seeking a blend of classic form with a modern, personal touch. The semi-set option allows you to select a center stone that resonates with your vision, making the design uniquely yours.

Resizing is available to ensure the perfect fit, and our team is happy to guide you through care and customization options. Lead times vary depending on stone selection but are communicated clearly throughout the process.

Visit our Williamsburg studio to explore this marquise solitaire semi-set or begin your custom design journey online. At Haejin Jewelry, we specialize in lab-grown diamond engagement rings crafted with Brooklyn expertise, marrying ethical values with refined artistry.

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.