C. 1985. Originally from designer UnoAErre of Arezzo, Italy, this beautiful necklace has just joined our Estate collection. Features a total… C. 1985. Originally from designer UnoAErre of Arezzo, Italy, this beautiful necklace has just joined our Estate collection. Features a total of .40 ct. t.w. round brilliant-cut diamonds, set in 18kt white gold, shimmering together into a refined swirl design that elegantly suspends at the center of the neckline. Crafted in 18kt yellow gold. Suspends from a fancy chain. Springring clasp, UnoAErre diamond swirl necklace. Exclusive, one-of-a-kind Estate Jewelry.