Bijou collier Agate Dentelle bleue (blue lace agate)Blue lace agate Agate necklace jewel Discovered in Italy, more precisely in Sicily, agate takes its name from the river where it was discovered, thepurchases. Now renamed "Dirillo", this Sicilian watercourse measures 54km and flows directly into the Mediterranean Sea. This name dates back around 2000 years and was given by the Greek naturalist and philosopher, Theophrastus. Blue lace agate can be found in various aspects, we generally encounter it in