Introduction

Welcome to our Diablo 4 Gem Guide. Here we’ll look at each type of Gem you’ll acquire on your journey as well as their effects on Armor, Weapons, and Jewelry.

NOTE – FOR MORE ON MALIGNANT HEARTS, the Season 1 item that slot into gem slots, check out our Malignant Heart Guide!

Gem Types and Their Effects

There are currently 7 types of Gems in Diablo 4. Each one uniquely affects your Stats depending on which piece of gear you slot it in. Below is a chart showing each gem and its effects at each quality.

Gem	Slot	Effect	Crude	Chipped	Gem	Flawless	Royal
AMETHYST	Weapon	% Damage Over Time	4%	5%	6%	7%	8%
	Armor	X% Damage Over Time Taken Reduced	4.0%	5.0%	6.0%	7.0%	8.0%
	Jewelry	% Shadow Resistance	11.5%	14.3%	17.1%	19.9%	22.7%
EMERALD	Weapon	% Critical Strike Damage to Vulnerable Enemies	7%	9%	11.0%	13.0%	15.0%
	Armor	+ Thorns	3%	4%	4.0%	4.5%	5.0%
	Jewelry	% Poison Resistance	4%	5%	6.0%	7.0%	8.0%
RUBY	Weapon	% Overpower Damage	6%	7.5%	9.0%	10.5%	12.0%
	Armor	% Life increase	12	28	44	60	76
	Jewelry	% Fire Resistance	11.5%	14.3%	17.1%	19.9%	22.7%
TOPAZ	Weapon	% Basic Skill Damage	12%	15%	18.0%	21.0%	24.0%
	Armor	% Damage Reduction While Control Impaired	2%	2.5%	3.0%	3.5%	4.0%
	Jewelry	% Lightning Resistance	11.5%	14.3%	17.1%	19.9%	22.7%
SAPPHIRE	Weapon	% Critical Strike Damage to Crowd-Controlled Enemies	6%	7.5%	9.0%	10.5%	12.0%
	Armor	% Damage Reduction While Fortified	1.0%	1.5%	2.0%	2.5%	3.0%
	Jewelry	% Cold Resistance	11.5%	14.3%	17.1%	19.9%	22.7%
DIAMOND	Weapon	% Ultimate Damage	10.0%	12.5%	15.0%	17.5%	20.0%
	Armor	% Barrier Generation	6.6%	7.0%	7.4%	7.8%	8.2%
	Jewelry	% Resistance to All Elements	11.5%	14.3%	17.1%	19.9%	22.7%
SKULL	Weapon	+ Life On Kill	2	5	8	11	14
	Armor	% Healing Received	3.0%	3.5%	4.0%	4.5%	5.0%
	Jewelry	+ Armor	100	125	150	175	200

Gem Slots

To slot a gem, you will need a Gem Slot on your gear. Some gear drops with gem slots already on them while other pieces of gear will require you to visit the Jeweler to create the socket. Once at the Jeweler, you’ll need to pay 1 Scattered Prism to create a socket in a piece of gear of your choosing.

Some Pieces can not have sockets added While others can have more than one. Below is a chart showing each piece of gear and the number of sockets that can be added to each.

Piece of Gear	Max Number of Gem Sockets
Head	1
Body	2
Gloves	0
Pants	2
Boots	0
Amulet	1
Ring	1
1 Handed Weapon/Off-hand	1
2 Handed Weapon/Bow	2

NOTE – GEMS CAN ALSO BE UNSOCKETED AT THE JEWELER

Diablo 4 Gem Guide Conclusion

That concludes our Diablo 4 Gem Guide. For more on the new Season 1 mechanic, check out our Malignant Heart Guide.