Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic shadow across the hand. This semi-set solitaire ring invites you to select a center stone that measures 12 by 6 millimeters—its tapered shape both striking and elegant.

Crafted from warm 14K yellow gold, the band is shaped and polished in our Williamsburg studio, offering a smooth comfort fit that rests lightly for daily wear. The low-profile setting balances security with subtlety, designed to showcase the diamond’s unique silhouette without overwhelming the finger.

Each piece reflects our commitment to ethical jewelry: the marquise diamond you choose will be lab-grown, ensuring clarity and brilliance with a smaller environmental footprint.

This ring suits those who appreciate bold geometry paired with artisan craftsmanship—its slender form elongates the hand and pairs effortlessly with stacking bands or a wedding band. The semi-set design allows for a personalized stone choice, making it a truly individual expression.

Resizing is available to ensure a perfect fit, and our team is happy to guide you through care and customization options.

Visit our Williamsburg studio to explore this marquise semi-set solitaire or begin your custom design online. Haejin Jewelry brings expert craftsmanship and ethical clarity to lab-grown diamond engagement rings, rooted in the creative heart of Brooklyn.

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.