Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of an 8 x 4 mm marquise diamond, casting a slender, confident silhouette across the hand. This three-stone semi-set engagement ring in 18K rose gold frames the center stone with two delicate side gems, emphasizing clarity and architectural balance.

Crafted in Williamsburg, the band’s smooth, low-profile shank offers a comfortable fit for daily wear, its warm rose hue polished to a soft glow. The setting’s precise prongs cradle the marquise securely while allowing light to flood the facets, enhancing the stone’s signature tapered drama.

Each lab-grown diamond is selected for its ethical origin and sustainability, reflecting a commitment to responsible luxury without compromise. The semi-set design invites you to choose a center stone that resonates personally, making this ring a true collaboration between your vision and our craft.

Ideal for those who appreciate modern minimalism with structural clarity, this ring pairs effortlessly with stacking bands or stands alone as a statement of refined confidence. Its slender profile slips easily beneath gloves or sleeves, designed for life’s intimate moments and everyday grace.

Should you need resizing or guidance on stone selection, our Brooklyn studio offers personalized support to ensure your ring fits perfectly and shines brilliantly.

Visit us in Williamsburg or explore custom design online to bring your engagement vision to life with Haejin Jewelry’s expert craftsmanship and ethical approach to lab-grown diamond rings.

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.