Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your hand as a 12 x 6 mm marquise diamond takes center stage, framed by a delicate halo that amplifies its tapered drama without overwhelming. This semi-set engagement ring foundation in 18K white gold offers a refined balance between presence and practicality, designed to sit low against the finger for everyday ease.

Crafted with precision in Williamsburg, Brooklyn, the band’s smooth finish and secure halo setting ensure durability and comfort, while the low-profile silhouette slips effortlessly beneath gloves or alongside stackable bands. Each piece undergoes meticulous inspection to meet exacting standards of fit and finish.

Our commitment to sustainability is reflected in the use of a lab-grown marquise diamond, combining ethical clarity with environmental mindfulness.

Ideal for those who appreciate architectural elegance paired with functional design, this ring suits slender to medium finger shapes and complements a modern lifestyle without compromise.

Should you need resizing or prefer a custom consultation, our Brooklyn studio offers personalized guidance with thoughtful timing and care.

Explore this semi-set halo ring in person or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a distinctly local sensibility.

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.