Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that seems to stretch beyond the finger. This semi-set solitaire ring invites you to select a 9 x 4.5 mm marquise stone, known for its dramatic taper and vintage-inspired elegance.

Crafted from warm 10K yellow gold, the band is shaped with a subtle comfort fit, its smooth interior contour designed for daily wear. The artisan hands of our Williamsburg studio refine each curve and prong, ensuring a secure, low-profile setting that balances presence with practicality.

Our commitment to sustainability shines through the lab-grown diamond option, offering clarity and brilliance without compromise. This choice reflects a conscious approach to ethical jewelry, aligned with modern values.

The slender marquise shape naturally elongates the finger, making this ring ideal for those who appreciate a distinctive yet wearable statement. Its solitaire design pairs effortlessly with stacking bands or stands alone with quiet confidence.

Should you need resizing or prefer a custom finish, our Brooklyn studio welcomes your requests with expert care and transparent timelines.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online—crafted for life’s most intimate 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.

Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.