Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a 6 x 3 mm marquise diamond, it reveals a subtle drama that elongates the finger with quiet elegance. This semi-set engagement ring foundation in 18K yellow gold is crafted with a low-profile setting designed for everyday wear, balancing secure prong accents with a smooth band that rests comfortably against the skin.

Each piece is meticulously hand-finished in our Williamsburg studio, where the warm glow of yellow gold is polished to a soft sheen, ensuring durability without sacrificing refined detail. The mounting’s streamlined design keeps the stone close to the hand, making it glove-friendly and ideal for stacking with complementary bands.

Our commitment to sustainability is reflected in the choice of a lab-grown diamond, offering clarity and brilliance with a lighter environmental footprint. This ring base suits those who appreciate architectural grace paired with practical comfort, especially for slender fingers that benefit from the marquise’s elongating effect.

Should you need resizing, our in-house artisans provide precise adjustments to maintain the ring’s integrity and fit. Lead times are typically aligned with custom design schedules, allowing you to collaborate closely with our team.

Explore this semi-set marquise foundation in person at our Williamsburg studio or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical lab-grown diamond engagement rings, blending local artistry with sustainable luxury 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.

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