Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous beam that seems to stretch beyond the finger. This semi-set engagement ring invites you to select a center stone measuring 12 by 6 millimeters, a size that balances bold presence with graceful wearability.

Crafted in warm 18K yellow gold, the mounting features delicate accent settings designed to enhance the marquise’s tapered drama while maintaining a low-profile silhouette. The band’s subtle curvature and smooth finish ensure comfort for everyday wear, slipping easily beneath gloves or alongside stackable rings.

Each piece is meticulously hand-finished in our Williamsburg studio, where precision meets quiet durability. The semi-set design allows for personalized stone selection, ensuring your ring reflects both your vision and lifestyle.

Our commitment to lab-grown diamonds means your ring carries a clarity and brilliance born from sustainable practices, reducing environmental impact without compromising beauty.

Ideal for those who appreciate architectural elegance paired with practical design, this ring suits slender to medium finger shapes and adapts well to layering with other bands.

Should you need resizing or guidance on stone choices, our Brooklyn studio offers expert consultation with attentive care and reasonable lead times.

Explore this semi-set marquise engagement ring in person or begin your custom design journey online—crafted for life’s intimate moments, right here in Williamsburg.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical lab-grown diamond engagement rings, blending modern design with local authenticity in every creation.

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.