Dahlia Reproductions
Above are two Dahlia pitchers, an old one the left, and a new example on the right. Same mold, same color--purple. About the only discernable difference if the type of iridescence, the newer one has a sort of garish purple iridescence applied more evenly that the example of the old pitcher. If the bottom of the pitcher is iridized, chances are it's new. The picture on the right shows a new tumbler and pitcher in red, a color that wasn't made during the classic era. New tumblers have three dahlias, rather than four of the classic examples. New water sets or pieces are also known in white and green opal as well as purple. Pieces are still being made by Mosser.
Water sets, 7 pieces
Delphite blue, 102, 206 (both eBay 2003)
Green opal, 105 (1999)
Ice blue, 75 (2001), 60 (2014), 60 (2015)
Purple, 65 (1999), 60 (2007), 35 (2013), 45 (2014)
Red, 225 (1998), 130 (1999), 90 (2012)
White, 70 (2007), 75 (2012)

Terry Crider also iridized some blanks from this pattern. This green opal spittoon, from a tumbler, sold in 2016 for $145.

Pitchers
Clear, 37 (ebay 2003)
Blue, 31, 47, 64 (all eBay 2008)
Delphite blue, 15, 75 (both eBay 2003)
Green, 25-40
Ice blue, 46 (eBay 2003)
Purple, 25-40
Red, 42, 104 (both eBay 2008)

Tumblers
Delphite blue, 10-15
Green, 10-15
Purple, 10-15
Red, 18 (1998)

Dahlia classic

Updated 2/21/17