Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching the soft morning light, its elongated silhouette casting a delicate shadow across your hand. This semi-set solitaire invites you to choose a center stone that measures 12 by 6 millimeters, offering a striking balance between presence and grace.

Crafted in 18K white gold, the mounting’s slender prongs cradle the stone with precision, allowing maximum light to dance through the facets. The band’s smooth finish and subtle taper ensure a comfortable fit, designed to sit low and unobtrusively for everyday wear. Each ring is meticulously hand-finished in our Williamsburg studio, where expert jewelers inspect every detail before it leaves the bench.

Our commitment to sustainability is reflected in the choice of lab-grown diamonds, which provide exceptional clarity and brilliance with a lighter environmental footprint.

This solitaire setting suits those who appreciate refined elegance and a silhouette that elongates the finger, pairing beautifully with stackable bands or worn alone as a statement of quiet confidence.

Should you need resizing or guidance on selecting the ideal marquise stone, our team is here to assist with care and expertise. Typical lead times accommodate thoughtful customization without rush.

We invite you to explore this semi-set solitaire in person at our Williamsburg studio or begin your custom design journey online, where every detail is tailored to your vision.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces meant for a lifetime.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.