Lab-Grown Diamond Engagement Ring

When light catches the elongated curves of a marquise diamond, it casts a slender, shimmering silhouette that feels both intimate and striking. This semi-set engagement ring offers a 10 x 5 mm marquise center stone, ready to be chosen and set into a sleek 10K white gold band that balances subtlety with presence.

Crafted in Williamsburg, the band’s low-profile design ensures the ring sits comfortably for everyday wear, its smooth finish inviting gentle touch. The solitaire setting highlights the diamond’s pointed elegance, allowing maximum light to dance through its facets while maintaining a secure embrace.

Each lab-grown diamond reflects a commitment to ethical sourcing and sustainability, offering clarity and brilliance without compromise. The cool white gold complements the stone’s icy fire, creating a refined canvas for the marquise’s distinctive shape.

Ideal for those who appreciate a ring that feels personal and purposeful, this design suits slender to medium finger sizes and pairs effortlessly with stacking bands or a wedding ring. Its streamlined silhouette slips easily under gloves or sleeves, making it a versatile choice for daily life.

Should you wish to adjust the fit or explore custom details, resizing and bespoke options are available through our Brooklyn studio experience. Lead times are tailored to ensure careful craftsmanship without rush.

Visit us in Williamsburg or begin your custom design journey online to bring your vision to life with a ring that is as thoughtful as it is luminous.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical design in every piece created for life’s most meaningful 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.