Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow that dances along the finger. This semi-set solitaire invites you to choose a center stone that echoes your unique story, its 12 x 6 mm proportions offering a striking balance of presence and elegance.

Crafted in warm 18K yellow gold, the mounting features a refined low-profile setting that cradles the stone securely while maintaining a delicate visual weight. The band’s smooth finish and subtle taper ensure a comfortable fit for everyday wear, designed to complement the diamond’s tapered points without overwhelming its shape.

Each piece reflects our commitment to ethical jewelry, showcasing lab-grown diamonds that offer clarity and brilliance with a lighter environmental footprint.

This ring suits those who appreciate a bold yet graceful statement—its silhouette elongates the finger, pairing beautifully with slender hands or stacked bands. The low-profile setting also makes it glove-friendly and ideal for an active lifestyle.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure your ring fits perfectly without compromising its integrity.

Visit us in Williamsburg to explore this semi-set marquise solitaire in person or begin your custom design journey online. At Haejin Jewelry, we blend expert craftsmanship with ethical sourcing to create lab-grown diamond engagement rings that resonate with Brooklyn’s creative spirit and your personal vision.

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.