Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a slender, dramatic silhouette that feels both bold and refined. This three-stone semi-set ring in 10K yellow gold frames an 8 x 4 mm marquise center with two delicate side stones, balancing architectural clarity with modern minimalism.

Crafted in Williamsburg, the band’s gentle curve and low-profile setting ensure a comfortable fit for daily wear, while the polished finish highlights the warm glow of yellow gold. Each piece is meticulously inspected to meet exacting standards of symmetry and polish.

Our lab-grown diamonds offer the same optical brilliance as mined stones with a smaller environmental footprint, reflecting a commitment to ethical jewelry without compromise.

The slender shape of the marquise naturally elongates the finger, making this design ideal for those who appreciate structured elegance and a confident, contemporary look. Its low profile and smooth edges make it glove-friendly and stackable with other bands.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure your ring fits perfectly without altering its sleek silhouette.

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

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern aesthetic rooted in New York City’s creative heart.

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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