Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, casting a slender, dramatic sparkle that draws the eye along the finger’s natural line. This semi-set halo ring foundation in 10K yellow gold offers a warm, buttery glow that complements the stone’s vintage-inspired shape.

Each band is hand-finished in our Williamsburg studio, with a delicate halo setting designed to amplify brilliance without adding bulk. The low-profile mounting ensures daily comfort and ease of wear, while the smooth interior promises a gentle fit against the skin. Precision craftsmanship is evident in the secure prongs and meticulous polishing that frame your chosen 12 x 6 mm marquise center.

Our commitment to lab-grown diamonds means this ring begins with a stone of exceptional clarity and ethical provenance, reflecting a modern approach to sustainability.

Ideal for those who appreciate a refined statement piece that balances bold geometry with subtle elegance, this ring suits slender to medium finger sizes and layers beautifully with stackable bands or wedding rings. Its streamlined silhouette fits comfortably under gloves or sleeves, making it a versatile choice for everyday life.

Should you need resizing or customization, our Brooklyn studio offers expert adjustments with care and precision, ensuring your ring feels uniquely yours.

Explore this semi-set halo marquise ring in person at our Williamsburg workshop or start your custom design journey online—crafted for the life you live.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical lab-grown diamond engagement rings, blending artisan skill with a commitment to sustainable, locally made luxury.

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.