Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, its pointed ends drawing the eye along the finger with quiet drama. This solitaire semi-set ring, crafted in warm 14K yellow gold, offers a refined foundation for an 8 x 4 mm center stone, designed to sit close to the hand with a low-profile setting that balances presence and practicality.

Each band is meticulously shaped for comfort, its smooth interior contour ensuring a secure yet gentle fit for daily wear. The yellow gold is hand-finished in our Williamsburg studio, polished to a soft glow that complements the diamond’s sharp geometry without overpowering it.

Choosing a lab-grown diamond here means embracing clarity and brilliance with a lighter environmental footprint, reflecting a commitment to ethical jewelry without compromise.

This ring suits those who appreciate architectural elegance paired with everyday resilience—its slender silhouette is glove-friendly and pairs effortlessly with stacking bands or a wedding ring. The semi-set design invites you to select a marquise cut that resonates personally, making the final piece uniquely yours.

Should you need resizing or advice on stone selection, our Brooklyn studio offers personalized guidance to ensure your ring fits perfectly and shines brilliantly for years to come.

Visit us in Williamsburg or explore custom design options online to begin crafting your engagement ring with thoughtful precision and care.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, hands-on design experience.

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.