Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the hand with subtle drama. This semi-set halo ring frames a 12 x 6 mm marquise center stone, designed to amplify brilliance while maintaining a low profile for everyday wear.

Crafted in warm 18K yellow gold, the band’s smooth finish and secure halo setting balance elegance with durability. The semi-set design invites you to select a lab-grown marquise diamond that meets your clarity and color preferences, ensuring a personalized centerpiece. The ring’s modest height and comfort fit make it ideal for daily wear, slipping easily beneath gloves or alongside stackable bands.

Each piece reflects a commitment to sustainability, featuring a lab-grown diamond option that reduces environmental impact without compromising on sparkle or quality.

Its elongated shape flatters slender fingers and adds a refined architectural edge, while the halo enhances perceived size and light return. The secure setting and balanced proportions suit those seeking a ring that harmonizes statement with subtlety.

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

Visit us in Williamsburg or begin your design journey online to experience the thoughtful craftsmanship behind every Haejin Jewelry creation. Our expertise in lab-grown diamond engagement rings and ethical fine jewelry is rooted in Brooklyn’s vibrant design community.

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.