Did you make sure the stones were mined miles underground in the foothills of the Italian alps, hopefully just miles from the Campagnolo (or Bianchi) factories........and shipped to skilled gem cutters and polishers in New York who labored for months to get just the right blue light refraction when hit by early morning fall season sunlight and cut to perfectly measured diameters to exactly fit into the apertures of the tip of Cobalto brake pivot nuts...... before they sold and shipped them to your friend!!???........
You must have,....... cause they look fantastic!!
Show us some pics when you have them on your bikes!

Chombi