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Emerald (Gold Find, Critical Damage or Dexterity).Amethyst (Life, Life per Hit or Vitality).In Diablo III, there are five different types of gems: Place 3 gems of one type into the Horadric Cube and click the Transmute button. You can use the Horadric Cube to convert gems into higher quality gems. You can upgrade gems by using a Gem Shrine, with a gem in your inventory, or by using the Horadric Cube. They come in five levels of increasing quality, which also determines their sell price to vendors: There are six types of gems, plus skulls, which are considered by the game to be gems for all purposes: They were introduced to showcase the socketing system, which was expanded in the Lord of Destruction with the introduction of Runes and Jewels.
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The skulls of some demonic creatures, inscribed with eldritch symbols, are said to work much like gems. Once inserted, gems cannot be removed from a socket, although they can be destroyed via a Horadric Cube recipe. Vendors also will not typically pay you full price for socketed items. Vendors do not normally sell gems, though if another player in a multiplayer game sells a gem to a vendor, you may be able to buy it.
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They can only be obtained by killing monsters, opening chests or using a Gem Shrine with no other gem in your inventory. The first gem that is placed will determine the color of the weapon. If you place 3 gems of the same type in a sword, you will receive the bonus of all three.
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