Vintage Butler Geometric Coloured Gemstone Necklace and Earrings Set Signed

Stunning Butler necklace and earring set Geometric design Multi coloured stones and Swarovski crystals for sparkle The necklace has square and oval links The matching dangle earrings are for pierced ears Signed Butler I'm not sure if the last circle on the necklace is missing a stone or if it was made like that as it looks good the way it is but I am pricing the set accordingly in case it is actually missing a stone. I couldn't find another one like it to compare.