Natural Color Small Size Keshi Pearls for sale! These keshi pearls are the smallest size that I have ever encountered. The pearl size is 5-8mm. What impresses me most about these pearls are the amazing color and luster. When I was busy checking these pearls, the pearl farmer told me that these keshi pearls are the smallest size available. Please note the pearls are not drilled yet. The price listed is for 20 pcs.