OK EVERYONE. JUST TO LET YOU KNOW (SINCE A LOT OF YOU ASK ME WHY BREEDERS AND MYSELF DON'T BELIEVE IN SILVER COLORATION). HERE'S THE INFORMATION ABOUT DILUTED COLORS:
Blue is actually diluted Black, Lilac is actually diluted Chocolate, and Fawn is
actually diluted Cinnamon.
SILVER IS NOT DILUTED CHOCOLATE. Silver is its own gene, as found in weimaraners.
as far as health...blue coloration (there are people selling blue and silver "labs") has a tendency to produce unique auto immune or coat problems.
here's a picture of coloration in shar peis (i couldn't find any other breed with black, blue, chocolate an lilac together in a single photo).
from left to right: black, blue (diluted black), lilac (diluted chocolate), chocolate.
note the difference in coloration between the lilac (above) and the silver (below). besides, note that the black puppy (below) has different type (has a wider head and shorter muzzle than the "silver" and the blue ones).
Here are other photos to compare
LILAC SHR PEI
BLUE SHAR PEI
SILVER LAB
(still don't see weimaraner in it?)