I picked up a set of Gold Elegant Jewelry when I ran one of the new trials when they first came out, but I just noticed how cheap Purple vs Gold which are about 400k plus per piece vs the 40-50k for purple. so I purchased a complete set of purple to look at the numbers and see if the premium price for gold vs purple was worth it in performance. below are the numbers for each. It's rather obvious so, don't be stupid and pay that high of extra dollars. I armor and weapons, the max would be 7 times the price of gold wax would be the max you should play for those as well, but the extra performance is still marginal. In this example i'm using my Sorc which has completed VMA as well (using the 3 Purple's) and Blue Food
Gold Purple
Max Magic 42450-42219
Max Health 17078-17078
Max Stam 10050-10050
Spell Damage 2607-2601
Spell Critical 70.3%-70.3%
Spell Resistance 11484-11484
Magic Recovery 853-853
Health Recovery 383-383
Stam Recovery 637-637
Weapons Damage 1581
Weapons Critical 33.6%-33.6%
Physical Resistence 9669-9669
So bottom line for me is that I wish I could now sell my Gold Set of Elegan Jewelry and just use the purple. So be advised b4 you break out your check book