We are in Florence, a multifaceted city rich in beauty, guardian of architectural wonders and inimitable works of art. This is where the COI project was born, with over 70 years of activity in the sale of luxury jewelry behind us.

Since 1954 we have been a point of reference for customers all over the world, renowned for the courtesy and excellent quality of our jewelry.

In our showroom and in the charming boutique on Ponte Vecchio you can find a unique assortment of the best Made in Italy brands together with local high jewelry.