Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that seems to dance with every movement. This three-stone semi-set engagement ring in 18K white gold frames a 7 x 3.5 mm marquise center, its pointed ends drawing the eye along the finger with quiet elegance.

Crafted with a delicate low-profile setting, the band’s polished surface curves gently for a comfort fit that feels natural for daily wear. Each prong is meticulously shaped and hand-finished in our Williamsburg studio, ensuring the stones sit securely while allowing light to flood the facets from every angle.

Our diamonds are lab-grown, offering a clarity and brilliance that honors both beauty and sustainability without compromise.

The narrow marquise shape elongates the hand, ideal for those who appreciate subtle drama paired with refined craftsmanship. Its three-stone design balances presence with grace, making it equally suited to stand alone or pair with a stackable band.

Should you need a custom adjustment, resizing is handled expertly in-house to maintain the ring’s seamless profile.

Explore this semi-set marquise ring in person at our Williamsburg studio or begin your custom design journey online—where thoughtful craftsmanship meets your vision.

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.

Haejin Jewelry is an ethical Brooklyn jeweler specializing in lab-grown diamond engagement rings. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.