Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic shadow that dances across the skin. This semi-set engagement ring invites you to select a 10 x 5 mm marquise stone, whose pointed ends and graceful curves evoke a refined, architectural elegance.

Crafted in warm 18K rose gold, the mounting’s clean lines and subtle accents emphasize clarity and structure, offering a modern-minimalist frame that balances boldness with restraint. The low-profile setting ensures everyday comfort, while the smooth band feels natural against the finger.

Each piece is meticulously finished in our Williamsburg studio, where expert hands polish and inspect every detail to meet exacting standards. The rose gold’s gentle glow complements the marquise’s unique shape, enhancing its visual elongation without overwhelming.

Our commitment to ethical jewelry shines through the use of lab-grown diamonds, offering a sustainable alternative with exceptional clarity and brilliance.

Designed for those who appreciate confident simplicity, this ring suits slender to medium finger shapes and layers effortlessly with stackable bands or wedding rings. Its low profile makes it glove-friendly and ideal for daily wear.

Should you wish to resize or customize further, our Brooklyn studio offers personalized consultations to ensure a perfect fit and finish.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online with Haejin Jewelry, where expert craftsmanship meets ethical innovation in the heart of Brooklyn.

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.