Lab-Grown Diamond Engagement Ring

The elongated silhouette of the marquise diamond, measuring 8 by 4 millimeters, draws the eye with its tapered points and graceful sweep—an elegant statement poised to complement the hand’s natural lines.

This semi-set engagement ring foundation is crafted from 14K white gold, offering a cool, luminous backdrop that enhances the diamond’s brilliance without overwhelming it. The setting is designed with a low profile to sit comfortably beneath gloves and daily wear, while subtle accent stones add a refined sparkle that catches light from every angle. Each piece is meticulously finished and inspected in our Williamsburg studio to ensure a seamless fit and enduring polish.

Our commitment to lab-grown diamonds means this ring carries a clarity and ethical provenance that aligns with mindful craftsmanship and sustainability.

Ideal for those seeking a sleek, modern engagement ring that balances architectural form with everyday practicality, this mounting pairs well with slender bands for stacking or stands confidently on its own.

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

Explore this semi-set marquise ring in person at our Williamsburg studio or begin your custom design journey online—where expert guidance meets thoughtful creation.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and local artistry to create pieces made for life’s most meaningful moments.

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.