Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated curves of a marquise diamond, casting a slender, dramatic silhouette that feels both bold and intimate. This semi-set halo engagement ring invites your choice of a 9 x 4.5 mm marquise center stone, cradled by a delicate halo that amplifies its fiery sparkle.

Crafted from 10K white gold, the band is shaped for everyday grace—smooth against the skin with a subtle comfort fit that balances presence and ease. The artisan hands in our Williamsburg studio finish each setting with meticulous attention, ensuring the halo’s pavé diamonds sit flush and secure, enhancing brilliance without bulk.

Our commitment to lab-grown diamonds means your ring carries a clarity and ethical provenance that honors both beauty and sustainability, reflecting a modern approach to fine jewelry.

This design suits those who appreciate architectural elegance paired with wearable refinement. Its low-profile halo setting slips comfortably beneath gloves and layers seamlessly with other bands, making it a versatile choice for daily wear or special moments.

Should you wish to adjust the fit, resizing is handled expertly in-studio to maintain the ring’s sculptural integrity. Typical lead times allow for careful customization without rush.

Explore this semi-set marquise halo in person at our Williamsburg workshop or begin your custom design journey online—where craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for a lifetime.

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.