Lab-Grown Diamond Engagement Ring

When light catches the slender silhouette of a marquise diamond, it traces a delicate arc that seems to extend the hand’s natural grace. This semi-set solitaire invites you to choose a 6 x 3 mm marquise center stone, its elongated shape offering a refined balance of drama and elegance.

Crafted in 18K white gold, the mounting’s smooth, low-profile band curves gently for everyday comfort, while the secure prong setting showcases the diamond’s pointed tips without overwhelming its slender form. Each ring is meticulously finished and inspected in our Williamsburg studio, ensuring a seamless blend of precision and wearability.

Our diamonds are lab-grown, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising on brilliance or clarity.

This solitaire suits those who appreciate subtle statement pieces—its narrow shape complements slender fingers and layers gracefully with other bands. The low-profile design slips easily under gloves and fits comfortably for daily wear.

Should you need resizing or prefer a custom stone cut, our Brooklyn studio offers personalized consultations to guide your choice with care and expertise.

Explore this marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where thoughtful craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry atelier specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces made for life’s intimate moments.

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.