Who would wear a lone poissarde? I have this beautiful Pearl emerald and ruby poissarde earring… in its original Georgian box! This earring was featured in the book ‘Georgian Jewellery’ by Ginny Redington Dawes with Olivia Collings. Apparently they only had one earring then ,and photoshopped the earring into the missing  poissarde! You can see it there on page 48. 
Box included