Lab-Grown Diamond Engagement Ring

Light catches the elongated points of a marquise diamond, casting a subtle, tapered glow that draws the eye along the finger. This semi-set platinum solitaire ring awaits your choice of a 7 x 3.5 mm marquise center, designed to sit low and secure for everyday grace.

Crafted in platinum, the mounting balances strength with refined comfort, featuring a low-profile setting that minimizes snagging while maintaining the diamond’s architectural drama. Each piece is hand-finished and inspected in our Williamsburg studio to ensure a seamless fit and enduring wearability.

Our commitment to ethical jewelry is reflected in the lab-grown diamond option, offering clarity and brilliance with a smaller environmental footprint.

The slender silhouette suits hands that appreciate subtle elegance and works well as a standalone statement or paired with stackable bands. Its comfort fit and modest height make it glove-friendly and ideal for daily wear.

Should you need resizing, our Brooklyn studio offers precise adjustments to maintain the ring’s balance and comfort without compromising its design.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online with Haejin Jewelry, where expert craftsmanship meets thoughtful, ethical design.

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.