Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate, tapered sparkle that seems to dance with every movement. This semi-set engagement ring invites you to select a center stone measuring 9 by 4.5 millimeters, its distinctive shape offering a dramatic yet elegant presence on the hand.

Crafted from warm 14K rose gold, the band is finished with a subtle sheen that complements the diamond’s fiery brilliance once set. The solitaire design emphasizes simplicity and focus, while the low-profile mounting ensures comfortable daily wear without compromising on visual impact. Each ring is meticulously hand-finished in our Williamsburg studio, where precision meets artisan care.

Choosing a lab-grown diamond for this setting reflects a commitment to ethical jewelry—minimizing environmental impact while maintaining exceptional clarity and sparkle. The marquise cut’s elongated form naturally elongates the finger, making it an excellent choice for those seeking a ring that feels both distinctive and refined.

Its slender band and modest height make this ring glove-friendly and ideal for stacking with complementary bands or wedding rings. Should you need resizing or guidance on selecting the perfect stone, our Brooklyn studio offers personalized consultations to ensure a seamless experience.

Explore this semi-set marquise solitaire in person or begin your custom design journey online, where expert guidance awaits in a pressure-free environment tailored to your vision.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for everyday elegance and lasting meaning.

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.