Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a delicate 8 x 4 mm canvas. This semi-set halo ring foundation in warm 18K rose gold invites your choice of center stone, framed by a subtle halo that amplifies light with artisan precision.

Hand-forged in our Williamsburg studio, the band’s gentle curve and polished finish ensure a comfortable fit that sits low against the finger, ideal for everyday wear. The halo setting is crafted to balance sparkle without excess height, making it glove-friendly and stackable alongside wedding bands or delicate accents.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and brilliance with a smaller environmental footprint. The marquise shape lends a refined drama, elongating the hand with its vintage-inspired yet modern geometry.

Designed for those who appreciate subtle statement and craftsmanship, this mounting suits slender to medium finger sizes, enhancing natural hand lines without overwhelming. Resizing is available to ensure a precise fit, with careful finishing to maintain the band’s smooth profile.

Explore this semi-set halo in person at our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful creation.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces made for daily life and lasting beauty.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.