Lab-Grown Diamond Engagement Ring

Imagine the elongated silhouette of a 10 x 5 mm marquise diamond catching light with every subtle movement—its tapered points lending a refined drama to the hand. This solitaire semi-set ring foundation in 18K white gold offers a sleek, low-profile setting designed for daily wear, balancing secure prongs with a comfort-fit band that rests naturally against the finger.

Each piece is meticulously crafted in our Williamsburg studio, where the metal is hand-finished to a smooth, polished sheen and inspected for precise symmetry and durability. The semi-set design invites you to select a center stone that resonates personally, ensuring a truly bespoke expression.

Our commitment to ethical jewelry is reflected in the use of lab-grown diamonds, offering clarity and brilliance with a smaller environmental footprint.

The slender band and low-profile setting suit those who prefer understated elegance that layers effortlessly with other rings or stands alone with quiet confidence. Its shape complements longer fingers and adapts well to various hand sizes without overwhelming.

Should you need resizing or prefer a custom fit, our Brooklyn studio offers attentive adjustments to ensure comfort and wearability.

We welcome you to explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful craftsmanship.

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 modern design sensibility rooted 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.