Lab-Grown Diamond Engagement Ring

Imagine the elongated silhouette of a marquise diamond catching the light with every subtle movement—its tapered points lending a striking elegance to the hand. This semi-set solitaire ring, designed to cradle a 12 x 6 mm marquise stone, offers a refined foundation crafted from warm 18K rose gold, chosen for its gentle glow and enduring strength.

The band’s low-profile setting ensures the diamond sits close to the finger, balancing presence with practicality for daily wear. Expertly finished in Williamsburg, the smooth shank features a comfort fit that embraces the hand without bulk, making it ideal for those who value understated sophistication alongside durability.

Each piece reflects our commitment to ethical jewelry, showcasing lab-grown diamonds that deliver exceptional clarity and brilliance with a reduced environmental footprint.

Its streamlined design suits slender to medium finger shapes, and the solitaire style allows for effortless stacking or pairing with a wedding band. The semi-set nature invites you to select a marquise stone that resonates personally, ensuring a truly bespoke expression.

Should you need resizing or guidance on selecting your center stone, our Brooklyn studio offers personalized consultations to guide you through every step.

Visit us in Williamsburg or explore our Ring Builder online to begin crafting a ring that balances technical assurance with timeless grace. Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical lab-grown diamond engagement rings, blending local artistry with 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.