No it is not, GP/EGP is mesured by thickness, Roll Gold same a Roll Gold Fill is mesured by weight. To be legally referred to as rolled gold or rolled gold fill 12 k and under has to have a layer of gold bonded to it 1/10 the the weight of the item, 14 k and up has to have 1/20 the weight. Dude i have found pounds of gold jewelry, post some pounds on TN. Don't believe me look at my threads. And that is a cufflink not a tie clasp. It is guys like you that caused me to stop posting my finds on TN. Here I am out hunting some of the best using my gold bug 2. I won by finding a gold ring and a walking liberty hals, not to mention the other silver, buffs, wheat, etc. Even made it on TV, watch video or I won't school you any more, lol:
YouTube Link: http://www.youtube.com/watch?v=WM5wXRv3aSQ&feature=youtube_gdata_player