Lab-Grown Diamond Engagement Ring

The elongated silhouette of a 12 x 6 mm marquise diamond captures light with a subtle, tapered drama that naturally draws the eye along the finger. This semi-set halo mounting in 10K yellow gold offers a refined balance between presence and practicality, designed to showcase your chosen center stone with a delicate frame of smaller diamonds.

Crafted with a low-profile setting, the band sits close to the finger, minimizing snagging while maintaining a comfortable fit for everyday wear. The warm glow of yellow gold complements the marquise’s vintage-inspired shape, finished with meticulous hand polishing and quality inspection in our Williamsburg studio.

Each lab-grown diamond is selected for clarity and brilliance, reflecting our commitment to ethical jewelry that honors both beauty and sustainability.

Ideal for those who appreciate a distinctive yet wearable engagement ring, this halo mounting pairs well with slender bands and fits comfortably beneath gloves or rings worn daily. The semi-set design invites you to personalize your ring with a marquise diamond that matches your vision.

Resizing is available to ensure a perfect fit, and our Brooklyn studio offers a pressure-free consultation to explore your custom design options.

Visit us in Williamsburg or start your design journey online to experience the thoughtful craftsmanship behind every Haejin Jewelry creation. As a Brooklyn fine-jewelry studio, we specialize in lab-grown diamond engagement rings that blend ethical craftsmanship with local artistry.

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.