Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, elegant shadow across the hand. This 5 x 3 mm marquise center stone is cradled within a delicate halo, amplifying its tapered drama without adding bulk.

Set in polished platinum, the ring’s low-profile halo setting ensures a secure fit that slides comfortably beneath gloves or sleeves. The smooth band balances presence with everyday wearability, finished by hand and inspected meticulously in our Williamsburg studio.

Crafted with a lab-grown diamond, this piece reflects a commitment to ethical sourcing and environmental mindfulness, offering clarity and brilliance without compromise.

Its slender silhouette suits those who appreciate refined geometry and a ring that complements rather than competes with daily life. The halo adds subtle sparkle, making it ideal for stacking or wearing solo with ease.

Resizing is straightforward, handled in-house to maintain the integrity of the platinum setting and halo detail.

Explore this marquise halo engagement ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and a deep connection to New York City’s creative spirit.

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.