Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the hand with a quiet drama. This semi-set three-stone ring foundation in 18K white gold offers a sculptural frame, ready to cradle a 10 x 5 mm center stone of your choosing.

Each band is meticulously crafted in our Williamsburg studio, where the cool gleam of white gold is hand-polished to a satin finish that balances subtle shine with everyday wearability. The three-stone setting sits low enough to slip comfortably beneath gloves or stack alongside other bands without catching.

Our commitment to lab-grown diamonds ensures clarity and brilliance with a lighter environmental footprint, reflecting a modern approach to ethical jewelry.

The elongated marquise shape naturally elongates the finger, ideal for those seeking a ring that feels both distinctive and elegant. Its semi-set state invites personal choice, allowing you to select a center diamond that speaks to your story.

Resizing is straightforward, handled in-house with care to maintain the ring’s structural integrity and finish.

Visit our Williamsburg studio to explore this design in person or start your custom journey online—crafted for daily life, made for you.

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

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