Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, casting a slender, dramatic sparkle that draws the eye along the finger’s natural line. This semi-set engagement ring foundation awaits your choice of an 8 x 4 mm marquise stone, ready to become a singular expression of your story.

Crafted from 14K white gold, the mounting features a delicate yet secure solitaire setting designed in our Williamsburg studio. The slender prongs cradle the diamond with precision, while the band’s smooth finish ensures a comfortable, low-profile fit that slips easily beneath gloves or alongside stackable bands.

Each piece is hand-finished and inspected in Brooklyn, reflecting a commitment to artisan quality and subtle strength. The use of lab-grown diamonds aligns with a mindful approach to sustainability, offering clarity and brilliance without compromise.

Ideal for those who appreciate refined geometry and a ring that harmonizes with daily wear, this mounting balances boldness with understated elegance. Its slender silhouette complements slender to medium finger sizes, enhancing the hand’s natural grace.

Should you need resizing or guidance on selecting the perfect marquise diamond, our studio team is happy to assist with personalized recommendations and care advice.

Explore this semi-set ring in person at our Williamsburg workshop or begin your custom design journey online—crafted for your life, made in Brooklyn.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and local authenticity in every creation.

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.