Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the finger with quiet drama. This semi-set engagement ring foundation in warm 10K rose gold offers a delicate balance between bold geometry and subtle warmth.

Handcrafted in our Williamsburg studio, the band is shaped for comfort with a smooth, low-profile shank that sits close to the skin. The rose gold is carefully polished to a soft glow, complementing the marquise’s signature brilliance without overpowering it. This mounting awaits your choice of a 10 x 5 mm marquise center, ready to be set with precision and care.

Each lab-grown diamond we work with reflects a commitment to ethical sourcing and environmental mindfulness, offering clarity and sparkle with a lighter footprint.

The slender band suits those who appreciate refined silhouettes and a ring that layers effortlessly with wedding bands or daily stackables. Its low profile also makes it glove-friendly and ideal for everyday wear.

Should you need adjustments, resizing is handled delicately in-house to maintain the ring’s integrity and finish.

Explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design journey online—where craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local artistry in New York City.

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.