Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate shadow that dances like whispered promises. This semi-set halo ring invites you to choose a 10 x 5 mm center stone, its pointed ends drawing the eye along the finger with a graceful, almost lyrical sweep.

Crafted in warm 10K yellow gold, the band’s gentle curve supports a halo setting that amplifies the marquise’s signature brilliance. The low-profile design ensures comfort for daily wear, while the polished finish reflects the Brooklyn studio’s meticulous handwork. Each piece undergoes careful inspection to meet exacting standards before it leaves the bench.

Our lab-grown diamonds offer clarity and sparkle with a lighter environmental footprint, aligning with a quiet commitment to ethical jewelry.

Ideal for those who appreciate romantic geometry and a ring that feels as natural as it looks striking, this setting pairs beautifully with slender stacking bands or worn solo for understated elegance. Its shape elongates the finger, making it a flattering choice for many hand types.

Should you need resizing or prefer a different center stone, our studio in Williamsburg welcomes your vision with expert guidance and thoughtful timing.

Explore this semi-set halo marquise ring in person or begin your custom design journey online—crafted for your story, shaped by Brooklyn’s creative spirit.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces that resonate beyond the moment.

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.