Longhorn/Steer? Goldtone and Glass Necklace stamped ©DG

I found someone else with a bracelet that is a similar style here but I'm not thinking these pieces are actually Dolce & Gabbana.  If anyone knows who does make this I'd really appreciate it!  The signature on the piece I am linking is the same as the one on the back of my necklace that my cell phone camera can't pick up because it's too small.  

 http://www.milkywayjewels.com/bracelets/CR121201.html

Good