Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that dances along the finger. This semi-set engagement ring invites you to select a 7 x 3.5 mm marquise center stone, its tapered shape evoking a quiet elegance and subtle drama.

Crafted in warm 18K yellow gold, the five-stone setting embraces the center with delicate side diamonds, each meticulously prong-set to maximize light and maintain a low-profile silhouette. The band’s gentle curve and smooth finish ensure a comfortable fit for daily wear, while the refined craftsmanship is evident in every polished edge and secure setting.

Each diamond is lab-grown, offering clarity and brilliance with a mindful approach to sustainability and ethical sourcing.

Designed for those who appreciate a graceful elongation of the hand, this ring pairs beautifully with slender stacking bands or worn solo for understated impact. Its low profile slips easily beneath gloves or sleeves, making it a versatile choice for everyday life.

Should you need resizing or wish to explore custom 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—where craftsmanship meets intention in every detail.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and a deep connection to New York City’s creative spirit.

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.