Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a slender, dramatic sparkle that seems to dance along the finger. This semi-set engagement ring foundation in 18K white gold invites you to select a center stone up to 10 by 5 millimeters, framing the marquise’s signature tapered points with a delicate, secure bezel or prong setting.

Crafted in our Williamsburg studio, the band is hand-finished to a smooth comfort fit, designed for everyday wear without catching or bulk. The low-profile mounting keeps the diamond close to the hand, ideal for stacking alongside wedding bands or cherished heirlooms. Each piece undergoes meticulous inspection to ensure the metal’s cool sheen and flawless polish complement the stone’s fiery brilliance.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, offering clarity and sparkle with a reduced environmental footprint.

This ring base suits those who appreciate refined geometry and subtle drama, especially flattering on slender fingers where the marquise shape elongates the hand. Its versatile design pairs well with both minimalist and ornate styles.

Should you need resizing, our in-house artisans provide precise adjustments to maintain the ring’s balance and comfort.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with expert precision and ethical care, blending artisan craftsmanship with the vibrant spirit of New York City.

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.