Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with quiet drama. This semi-set halo engagement ring foundation in 18K rose gold offers a warm, subtle glow that complements the stone’s distinctive shape.

Crafted with a low-profile setting, the mounting balances presence with practicality—designed to sit comfortably beneath gloves and daily wear. The halo setting, ready to embrace a 12 x 6 mm marquise center, adds a delicate frame that enhances brilliance without bulk. Each curve and prong is meticulously finished in our Williamsburg studio, ensuring smooth edges and a comfort fit that invites everyday wear.

Our commitment to lab-grown diamonds means this ring supports ethical sourcing and sustainability, reflecting a modern approach to fine jewelry.

The slender rose gold band suits hands that appreciate refined geometry and a ring that layers effortlessly with other bands. Its semi-set nature allows you to select a marquise diamond that matches your personal vision, while the halo setting will amplify its sparkle.

Should you need resizing or prefer a custom adjustment, our Brooklyn studio offers personalized consultations to ensure the perfect fit and finish.

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

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

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.