Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the finger with a subtle, elegant drama. This semi-set engagement ring foundation in 14K yellow gold offers a warm, tactile contrast to the cool brilliance of your chosen stone, ready to cradle a 10 x 5 mm marquise center with precision.

Handcrafted in our Williamsburg studio, the band features a smooth comfort fit and a low-profile setting designed for daily wear without catching or discomfort. Each curve is carefully finished to a soft matte sheen, allowing the diamond’s facets to command attention while the band remains quietly supportive.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, ensuring clarity and brilliance with a smaller environmental footprint.

The slender silhouette suits those who appreciate a refined statement—elongating the finger and pairing effortlessly with stacking bands or wedding rings. Its modest height makes it glove-friendly and ideal for an active lifestyle.

Should you need resizing, our Brooklyn studio offers expert adjustments to ensure a perfect fit without compromising the ring’s integrity.

Explore this semi-set marquise solitaire in person at our Williamsburg workshop or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with thoughtful design, ethical sourcing, and artisan skill rooted in New York City’s creative heart.

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.