Just like any other retriever, the silver labs are energetic, intelligent, friendly, playful and loveable. This beautiful and unique color dates back to the early 1800. Some believe these labradors are the crossbreed between retrievers and Weimaraners. However, scientists have proved that the silver labs are the product of diluted gene, the diluted version of chocolate.Still, they are one of the rarest breeds. That’s why silver labs are considered a premium breed.