Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic sparkle that seems to stretch across the finger.

This semi-set engagement ring features a 6 x 3 mm marquise lab-grown diamond, chosen for its tapered elegance and distinctive brilliance. Crafted in 18K yellow gold, the mounting is designed with a low-profile setting that hugs the finger closely, ensuring comfort for everyday wear without sacrificing security. Each curve and prong is meticulously finished by hand in our Williamsburg studio, with careful inspection to maintain precise alignment and polish.

Our commitment to ethical jewelry is reflected in the lab-grown diamond’s clarity and sustainability, offering a conscious alternative without compromise.

The slender shape and modest size suit a variety of hand shapes, especially those who appreciate a refined, elongating effect. Its solitaire style pairs effortlessly with stacking bands or stands alone with quiet confidence. The low profile also makes it glove-friendly and ideal for active lifestyles.

Should you wish to customize the center stone or adjust sizing, our Brooklyn studio offers personalized consultations with flexible lead times tailored to your needs.

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

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local authenticity.

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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