Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching morning light, its elongated silhouette casting a subtle, graceful shadow along your finger. This semi-set engagement ring in warm 18K yellow gold offers a delicate foundation, ready to cradle a 5 x 3 mm marquise stone that balances refined geometry with romantic allure.

Handcrafted in Williamsburg, the band’s smooth finish and slender profile ensure a comfortable, everyday wear experience. The low-profile setting keeps the diamond close to the hand, minimizing snagging while allowing light to dance freely across the stone’s pointed ends. Each ring undergoes meticulous inspection to meet exacting standards of craftsmanship.

Our commitment to ethical jewelry shines through the exclusive use of lab-grown diamonds, combining clarity and sustainability without compromise.

Designed for those who appreciate subtle drama and timeless elegance, this solitaire mounting suits slender fingers and pairs effortlessly with stacking bands or a wedding ring. Its modest size and comfort fit make it an ideal choice for daily wear, including glove-friendly occasions.

Should you need resizing, our Brooklyn studio offers personalized adjustments to ensure a perfect fit without delay.

We invite you to explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with thoughtful design, ethical sourcing, and artisanal skill rooted in New York City’s creative heart.

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.