Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a delicate, shimmering shadow—an intimate dance of light and form. This semi-set halo engagement ring in 18K rose gold frames a 10 x 5 mm marquise center with a whisper of warmth, its slender points echoing a quiet elegance.

Crafted in Williamsburg, the rose gold band is polished to a soft glow, its gentle curve designed for comfort and daily wear. The halo setting, ready to embrace your chosen stone, enhances the marquise’s signature tapered drama while maintaining a low profile that slips easily beneath gloves or alongside stackable bands.

Each piece reflects our commitment to ethical jewelry: the halo mounting awaits your lab-grown diamond, offering clarity and sustainability without compromise.

Ideal for those who appreciate a blend of vintage romance and modern craftsmanship, this ring suits slender to medium finger shapes, elongating the hand with its architectural form. The semi-set design allows for personal choice in selecting the perfect marquise stone to complete your vision.

Should you need resizing or guidance on stone selection, our Brooklyn studio offers expert advice and attentive care throughout the process.

Visit us in Williamsburg or begin your custom design journey online—where thoughtful craftsmanship meets your unique story.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values 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.