Picchiotti 18ct White Gold White And Brown Diamond Twist Necklace PCH-085 Every piece of Picchiotti jewellery is created in house at their own workshops in Valenza, Italy. With a keen eye for quality, both in craftsmanship and materials, the personal supervision of the Picchiotti family ensures a level of satisfaction which has become legendary. Renowned worldwide as a premier manufacturing company of one-of-a-kind pieces.