Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that dances with every movement. This semi-set halo engagement ring features a 9 x 4.5 mm marquise center, its pointed ends drawing the eye along a graceful arc.

Crafted from 10K yellow gold, the band is shaped and polished in our Williamsburg studio to a gentle comfort fit, balancing presence with everyday wearability. The halo setting, designed to cradle the marquise, enhances its brilliance while maintaining a low profile that slips easily beneath gloves or alongside stackable bands.

Each piece undergoes meticulous hand finishing and inspection, ensuring the metal’s warm glow complements the diamond’s sharp geometry without distraction. The semi-set design invites you to select a lab-grown diamond of exceptional clarity and ethical provenance, reflecting our commitment to sustainability without compromise.

Ideal for those who appreciate architectural elegance paired with artisanal detail, this ring suits slender to medium finger shapes, elongating the hand with its tapered form. Its subtle height and secure setting make it a practical choice for daily life.

Should resizing be needed, our in-house jewelers provide precise adjustments to maintain comfort and integrity. Typical lead times accommodate custom stone selection and setting with care.

Visit our Williamsburg studio to explore this marquise halo semi-set in person or begin your custom design journey online. Haejin Jewelry blends expert craftsmanship with ethical lab-grown diamonds, shaping fine jewelry in Brooklyn that honors both tradition and modern values.

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.