Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a slender, dramatic sparkle that draws the eye along the finger’s natural line. This semi-set engagement ring foundation in 10K white gold offers a refined stage for a 10 x 5 mm marquise center stone, ready to be chosen and set with care.

Handcrafted in our Williamsburg studio, the band is shaped for comfort with a subtle taper that balances presence and wearability. The low-profile prong setting ensures the diamond sits close to the finger, making it easy to wear daily and stack alongside other bands without catching.

Each piece reflects our commitment to ethical jewelry: the marquise diamond you select will be lab-grown, offering clarity and brilliance with a reduced environmental footprint.

This design suits those who appreciate architectural elegance and a ring that feels as natural as it looks striking. Its slender shape complements longer fingers and pairs effortlessly with a variety of wedding bands.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure a perfect fit without compromising the ring’s delicate balance.

Explore this semi-set marquise solitaire in person at our Williamsburg workshop or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for everyday life and lasting beauty.

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.