Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow that hints at quiet confidence. This semi-set engagement ring invites you to choose a center stone that measures 12 by 6 millimeters, its pointed ends drawing the eye along the finger with subtle drama.

Crafted from 18K white gold, the mounting is designed with a delicate solitaire setting that balances elegance and everyday wearability. The low-profile prongs cradle the stone securely while maintaining a refined silhouette that slips easily beneath gloves or rings stacked alongside it. Each piece is hand-finished in our Williamsburg studio, where meticulous inspection ensures a smooth comfort fit and flawless polish.

Our commitment to lab-grown diamonds means your chosen stone will shine with ethical clarity, reflecting a sustainable approach to fine jewelry without compromise.

This ring suits those who appreciate architectural beauty paired with modern restraint—ideal for hands that favor slender, elongated shapes and a design that complements rather than competes. The semi-set style offers the freedom to select a marquise diamond that resonates personally, whether for its fiery brilliance or glassy elegance.

Resizing is available to ensure a perfect fit, crafted with care to preserve the ring’s clean lines and comfort.

Visit our Williamsburg studio to explore this setting in person or begin your custom design journey online. Haejin Jewelry blends expert craftsmanship with ethical sensibility, creating lab-grown diamond engagement rings that reflect the spirit of Brooklyn’s creative heart.

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.