Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that seems to stretch across the hand like a whispered promise. This three-stone semi-set engagement ring in 10K yellow gold frames a 10 x 5 mm marquise center with two gently tapering side stones, creating a delicate balance of light and shadow.

Crafted with a low-profile setting, the band’s smooth finish and subtle curvature ensure a comfortable fit for daily wear. Each prong is meticulously shaped and polished in our Williamsburg studio, where precision meets quiet artistry. The semi-set design invites you to select a center stone that reflects your personal story, while the warm yellow gold complements a variety of skin tones with understated elegance.

Our diamonds are lab-grown, offering clarity and brilliance without compromise, aligned with a commitment to sustainability and ethical sourcing. The slender marquise shape naturally elongates the finger, making it a graceful choice for those who appreciate refined geometry and a touch of vintage allure.

Designed to sit close to the finger, this ring pairs beautifully with stacking bands or alone as a statement of quiet confidence. Resizing is available to ensure a seamless fit, with care instructions provided to maintain the ring’s radiant finish over time.

We invite you to explore this semi-set marquise engagement ring in our Williamsburg studio or begin your custom design journey online, where thoughtful craftsmanship meets your vision.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local authenticity to create pieces meant for a lifetime.

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.