Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it draws the eye along a graceful arc—an elegant statement of refined drama. This semi-set engagement ring frame, crafted in warm 18K rose gold, offers a subtle contrast with its polished white gold accents that catch the light with quiet precision.

The setting is designed for everyday wear: a low-profile mount that sits close to the finger, minimizing snagging while maintaining a confident presence. The band’s smooth finish and balanced weight ensure comfort throughout the day, whether worn solo or paired with stacking bands. Each curve and angle is meticulously shaped and inspected in our Williamsburg studio, reflecting a commitment to craftsmanship that honors both form and function.

Our lab-grown marquise diamond offers the clarity and brilliance of mined stones with a fraction of the environmental impact, aligning with a modern ethical approach to fine jewelry.

Ideal for those who appreciate architectural elegance and a ring that fits seamlessly into daily life, this setting accommodates a 9 x 4.5 mm marquise center stone, enhancing its elongated shape without overwhelming the hand.

Should you need resizing or prefer a custom finish, our Brooklyn studio provides personalized adjustments with care and precision.

Explore this semi-set frame in person at our Williamsburg studio or begin your custom design journey online—crafted for your story, made for your life.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert design and ethical craftsmanship, specializing in lab-grown diamond engagement rings that reflect the spirit of 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.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.