Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow across the hand. This semi-set engagement ring invites you to select the centerpiece that will define your story.

Crafted in warm 10K rose gold, the band is shaped and polished in our Williamsburg studio to a smooth, comfortable fit that wears effortlessly every day. The low-profile setting balances security with subtlety, allowing the marquise’s pointed ends to extend elegantly without catching.

Each ring is designed with ethical clarity in mind—ready to showcase a lab-grown diamond that reflects sustainable values without compromise on brilliance.

Its slender band and refined silhouette suit those who appreciate a delicate yet confident statement, perfect for stacking or wearing solo. The 8 x 4 mm marquise shape naturally elongates the finger, lending a refined architectural grace.

Should you need resizing or guidance on selecting the ideal center stone, our Brooklyn studio offers personalized support with thoughtful timing.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—crafted for life in Williamsburg and beyond.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a commitment to local 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.