Lab-Grown Diamond Engagement Ring

Imagine the elongated silhouette of a marquise diamond catching the light with a subtle, confident gleam—its pointed ends lending a refined drama to your hand. This semi-set engagement ring in 18K rose gold offers a warm, modern-minimal frame, designed to highlight a 10 x 5 mm marquise center stone with delicate accent diamonds that enhance clarity and structure without distraction.

Crafted in Williamsburg, the band is smoothly finished for comfort, its low-profile setting ensuring ease of wear and compatibility with gloves or stacking. The rose gold’s gentle blush complements the diamond’s brilliance, while the semi-set design invites your choice of a lab-grown center, inspected meticulously for cut and clarity before setting.

Our commitment to ethical jewelry shines through in the use of sustainable lab-grown diamonds, reducing environmental impact without compromising on sparkle or integrity.

This ring suits those who appreciate architectural elegance paired with everyday practicality—its slender band and secure prongs make it a natural fit for hands seeking both style and subtlety.

Should you need resizing or guidance on selecting the perfect marquise, our Brooklyn studio offers personalized support with thoughtful timing and care.

Visit us in Williamsburg or begin your custom design journey online to experience the quiet confidence of a ring made for your story.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local artistry to create pieces that resonate beyond the moment.

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.