Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it draws the eye along a graceful arc, evoking a quiet drama that feels both intimate and bold. This semi-set engagement ring invites you to choose a center stone that measures 12 by 6 millimeters, its pointed ends amplifying the hand’s natural elegance.

Crafted from cool 14K white gold, the mounting features a delicate solitaire setting designed for everyday wear. The slender prongs cradle the stone securely while maintaining a low profile that slips comfortably beneath gloves or alongside a stack of bands. Each ring is meticulously finished by hand in our Williamsburg studio, where every curve and angle is refined for balance and durability.

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 flatters a variety of hand sizes, offering a striking yet wearable statement that complements both minimalist and layered styles.

Should you need resizing, our in-house artisans provide careful adjustments to maintain the ring’s integrity without compromising its refined silhouette. Lead times vary slightly depending on stone selection, but we guide you through every step with transparency and care.

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

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 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.