I have noticed on PTS that Jewelry Enchants has for the most part received a pretty substantial nerf when compared to Lives versions.
Below are just 1 example.
VR 10-14 Legendary Live Versions:
14 Spell Damage Jewelry Enchant:
9 Spell Damage bonus from Legendary VR14 Sets.
VR 10-14 PTS Version:
48 Spell Damage Jewelry Enchant:
177 Spell Damage bonus from Legendary VR14 Sets.
As the above indicates before an enchant was around 55% greater then a VR 14 Legendary Set Bonus.
On PTS a VR14 Legendary Set Bonus is 400% greater then the enchant.
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Most of the other Jewelry enchants are much much weaker compared to Set Bonuses and Gear Armor/Spell Resist.
A few were not increased at all. Example: Bash Enchant is same as live version.
Overall Jewelry Enchants did not receive the same boost as most of the game. Some received a massive nerf compared to Live.