Lab-Grown Diamond Engagement Ring

The elongated silhouette of the 12 x 6 mm marquise center stone draws the eye along the finger, offering a refined balance of drama and elegance. This three-stone semi-set rests on an 18K rose gold band, its warm hue complementing the diamond’s sharp points with subtle glow.

Crafted with a low-profile setting, the mounting ensures the ring sits close to the hand for everyday comfort and ease beneath gloves or sleeves. Each prong is meticulously shaped and polished in our Williamsburg studio, where the band’s smooth interior is finished for a gentle, secure fit.

Our commitment to lab-grown diamonds means this piece carries the clarity and brilliance of natural stones with a lighter environmental footprint. The semi-set design invites you to select a center stone that suits your vision, supported by expert guidance from our Brooklyn artisans.

Ideal for those who appreciate architectural lines and a ring that layers effortlessly with wedding bands or stackable styles. The three-stone arrangement adds dimension without bulk, making it a versatile choice for daily wear.

Should you need resizing or personalized adjustments, our in-studio process ensures a precise fit with minimal wait.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online with Haejin Jewelry, where expert craftsmanship meets ethical clarity in Brooklyn.

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.