JEWEL OF ENVY, Diablo 2 Resurrected

The Jewel of Envy is a magic twinking jewel that is usually socketed into crystal swords or war scepters, as well as Masks and Ancient Armor.

JoE are damage over time socketable items with no level requirement. Once socketed, each JoE inflicts on-hit 20 poison damage over 2 secs. Now, our Crystal Sword sports six sockets each of which is fitted with a JoE. Thus, it inflicts on-hit 120 poison damage over 2 secs.

"of Envy" is simply a suffix. As can be seen, it can appear with other suffixes and prefixes on RARE jewels:

Rare Perfect Weapon jewel (Cinnebar + Nickel + Envy + Freedom):

[P 16]

Rare Perfect Armor jewel (Envy + Blanched + Spirit + Freedom):

[P 16]

Diablo 2	30 18 9 Jewel	Crimson Jewel of Carnage
Best Items Diablo 2	Ruby Jewel of Fervor	Rusty Jewel of Wrath
Best Jewels Diablo 2	Ruby Jewel of Carnage	Jewel of Envy
30 60 9 9 Jewel	Vermilion Jewel of Fervor	Rainbow Facet Jewel Cold
7 9 9 10 Jewel	Vermilion Jewel of Carnage	Rainbow Facet Jewel Fire
18 min 18 max Jewel	Carmine Jewel of Carnage	Rainbow Facet Jewel Lightning
30 10 18 Jewel	Rusty Jewel of Carnage	Rainbow Facet Jewel Poison