Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that seems to stretch beyond the finger. This semi-set engagement ring foundation in warm 14K rose gold invites your choice of a 6 x 3.5 mm marquise center, a shape known for its elegant taper and confident geometry.

Crafted with precision, the band’s subtle accents frame the center stone without overwhelming it, emphasizing clarity and structure. The rose gold’s gentle blush complements the diamond’s brilliance, while the low-profile setting ensures daily wearability and comfort. Each piece is hand-finished in our Williamsburg studio, inspected meticulously for smooth edges and balanced proportions.

Choosing a lab-grown diamond here means embracing ethical jewelry that reduces environmental impact without sacrificing beauty or integrity.

The slender band suits those who appreciate modern minimalism with a touch of warmth, fitting comfortably alongside wedding bands or stacked with other fine rings. Its refined profile works well for smaller hands or anyone seeking a glove-friendly design.

Should you need resizing or prefer a custom accent arrangement, our Brooklyn studio offers personalized consultations to tailor the ring to your lifestyle and vision.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online—where craftsmanship meets thoughtful intention.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, hands-on design experience.

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.