Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a 5 x 3 mm marquise diamond, its tapered points drawing the eye along a delicate halo of shimmering pavé. This semi-set engagement ring in 18K rose gold offers a refined foundation, ready to cradle your chosen center stone with precision and grace.

Crafted in Williamsburg, the band’s low-profile halo setting balances sparkle with everyday practicality, sitting close to the finger for comfort and ease beneath gloves or rings stacked alongside. The warm blush of rose gold complements the marquise’s dramatic shape, enhancing its vintage-inspired allure without overwhelming the hand.

Each piece reflects a commitment to sustainability through lab-grown diamonds, marrying ethical clarity with Brooklyn’s artisanal standards. The semi-set design invites personal choice, allowing you to select a marquise cut that resonates with your vision.

Ideal for those who appreciate architectural elegance paired with subtle wearability, this ring suits slender to medium finger sizes and adapts well to layering. Its secure setting and smooth finish ensure durability for daily life.

Resizing is available to ensure a precise fit, and our studio offers guidance on selecting the perfect marquise diamond to complete your ring.

Explore this semi-set halo ring in our Williamsburg studio or begin your custom design journey online—where expert craftsmanship meets thoughtful, ethical design.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with sustainable practices and a local, personalized approach to custom design.

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.