Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, casting a slender, graceful shadow across the hand. This semi-set engagement ring invites you to select your own 8 x 4 mm marquise center, a shape known for its tapered drama and ability to visually lengthen the finger.

Crafted in 18K white gold, the mounting features a refined solitaire setting designed in our Williamsburg studio. The slender prongs hold the stone securely while maintaining a low profile that sits comfortably beneath gloves or daily wear. Each band is hand-finished with a smooth comfort fit, ensuring it feels as natural as it looks.

Our diamonds are lab-grown with a focus on clarity and brilliance, reflecting a commitment to ethical jewelry without compromise. This approach reduces environmental impact while offering a stone of exceptional purity.

The ring’s minimalist silhouette suits those who appreciate modern geometry and understated elegance, ideal for stacking or wearing solo. Its low-profile setting makes it practical for everyday life, especially for hands that prefer a sleek, unobtrusive design.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure a perfect fit without disrupting the ring’s balance.

Explore this semi-set marquise solitaire in person at our Williamsburg workshop or begin your custom design journey online. Haejin Jewelry blends expert craftsmanship with ethical sourcing to create lab-grown diamond engagement rings that embody Brooklyn’s artisanal spirit and refined modernity.

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.