Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching the soft morning light, its elongated silhouette whispering quiet elegance across your hand. This semi-set engagement ring invites you to choose a 9 x 4.5 mm marquise center stone, whose tapered points create a subtle drama that elongates the finger with refined grace.

Crafted in warm 14K rose gold, the slender band is polished to a satin finish that feels smooth and intimate against the skin. The low-profile prong setting is designed for everyday wear, offering both security and comfort without interrupting the ring’s delicate flow. Each piece is meticulously finished in our Williamsburg studio, where hand inspection ensures every detail meets exacting standards.

Our commitment to ethical jewelry shines through the exclusive use of lab-grown diamonds, chosen for their clarity and sustainable origins without compromise.

This solitaire silhouette suits those who appreciate a romantic yet modern statement—its slender band pairs effortlessly with stacking rings or stands beautifully alone. The semi-set design allows you to select a marquise diamond that reflects your personal story and style.

Should you need resizing or guidance on selecting the ideal stone, our Brooklyn studio offers personalized consultations to ensure a seamless experience.

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

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces made for daily life and lasting connection.

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.