Rock

Diamonds

Reflection

Flora&fauna

Geometry

BUILD YOUR RING

Explore our collection of settings, meticulously crafted for everlasting quality.

START WITH A SETTING

Choose from our vast collection of brilliant diamonds, in any shape, size, and carat.

START WITH A DIAMOND

Design Your Jewelry

Heart Fantasy

Princess Fantasy

Oval Classic

Round Halo

Classic Six

Channel Set TRing

Side Stone TRing

Pave TRing

Classic TRing

Rounded TRing

Customer Stories & Reviews

Elegant & Unique

“I never thought I could customize my jewelry so easily! The modular design allowed me to create a ring that perfectly matches my style. The quality is outstanding!”

Sophia R.

The Perfect Gift

“I bought a charm and ring set for my fiancée, and she was amazed by how she could change and personalize it over time. It’s truly a one-of-a-kind experience!”

Daniel M.

Luxury & Versatility

“I love how I can transform my earrings with different gemstones. It feels like having multiple pieces in one. Kotaosta’s craftsmanship is simply stunning!”

Emily L.

Timeless Craftsmanship

“The attention to detail and the ability to swap elements make this jewelry collection so special. I’ve never seen anything like it before!”

Olivia T.

Advantages of ⁠KOTAOSTA

Modular Design Innovation

Our patented modular technology lets you customize your jewelry effortlessly, creating unique pieces tailored to your mood and style.

Premium materials

Crafted with 18K gold, ethically sourced diamonds, and natural gemstones for timeless elegance and lasting quality.

Versatility and transformation

Easily swap charms and components to transform your jewelry, making it adaptable for every occasion.