Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate shadow that hints at whispered promises. This three-stone semi-set engagement ring in 18K rose gold frames a 12 x 6 mm marquise center with two gently tapering side stones, creating a graceful arc that feels both intimate and expansive.

Crafted in Williamsburg, the warm blush of the rose gold band is hand-finished to a soft satin sheen, complementing the diamond’s sharp facets without overwhelming them. The low-profile setting ensures the ring sits close to the finger, offering comfort for daily wear while allowing light to dance freely through each stone’s pointed ends.

Each diamond is lab-grown with clarity and brilliance that honors sustainable practices, reflecting a commitment to ethical jewelry without compromise. The semi-set design invites you to select a center stone that resonates personally, making this ring a truly bespoke expression.

Ideal for those who appreciate romantic geometry and a ring that balances presence with subtlety, this piece pairs beautifully with delicate bands or stands alone as a statement of enduring affection. Its slender shank and secure prongs make it glove-friendly and easy to wear through every season.

Should you wish to adjust sizing or explore stone options, our Brooklyn studio offers personalized consultations with thoughtful timelines tailored to your needs.

Visit us in Williamsburg or begin your custom design journey online—experience how Haejin Jewelry transforms lab-grown diamond engagement rings into intimate stories of love and craftsmanship.

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.