Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the length of the finger. This solitaire semi-set invites you to select a 10 x 5 mm center stone, framing its dramatic shape with a sleek 18K yellow gold band designed for everyday grace.

Crafted with a low-profile setting, the mounting ensures the diamond sits close to the hand, reducing snagging while maintaining a confident presence. The band’s smooth finish and balanced weight offer a comfort fit that adapts seamlessly to daily wear, whether worn alone or paired with complementary bands.

Each piece reflects a commitment to ethical jewelry, featuring lab-grown diamonds that combine clarity and brilliance with a reduced environmental footprint.

Ideal for those who appreciate architectural elegance and a refined silhouette, this marquise semi-set suits slender to medium finger shapes, elongating the hand with its distinctive form. Its subtle height and secure prong placement make it glove-friendly and stackable.

Should you need resizing or prefer a custom stone cut, our Brooklyn studio offers personalized consultations to tailor the ring precisely to your vision and lifestyle.

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

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with expert design rooted in New York City’s creative spirit.

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.