Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic sparkle that draws the eye along the finger’s natural line. This semi-set engagement ring invites you to select a center stone up to 12 by 6 millimeters, offering a bold yet refined statement.

Crafted from 18K white gold, the mounting features a delicate solitaire setting designed with artisan precision in our Williamsburg studio. The slender prongs cradle the stone securely while maintaining a low profile that sits comfortably for daily wear. The band’s smooth finish and subtle tapering ensure it feels balanced and glove-friendly.

Each ring is made to order with a commitment to ethical sourcing, showcasing the clarity and brilliance of lab-grown diamonds—an intentional choice for sustainability without compromise.

Ideal for those who appreciate architectural elegance and a ring that complements slender or average finger shapes, the marquise’s pointed ends elongate the hand gracefully. Its solitaire style allows for effortless stacking or pairing with a wedding band.

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

Explore this semi-set marquise solitaire in person at our Williamsburg workshop or begin your custom design journey online with Haejin Jewelry, where expert craftsmanship meets ethical clarity in the heart of Brooklyn.

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.