Jewels are a kind of item that you can insert into a Socketed item. They can have up to 4 different random attributes which become effective only after you socket them into an item. Also, before you can insert a Jewel into an item, you have to identify it using the Tome of Identify. You can also take it to Deckard Cain so he can identify it for you.
In contrast to Gems and Runes, each Jewel provides random magic abilities rather than predetermined effects.
Often, Jewels are the best thing that you can insert into your favorite item. Their best bonuses are the Increased Damage (both Physical and Elemental), Increased Attack Speed and additional Resistances. There are many other nice stats that you can gain from a Jewel such as Mana and Life points, but they are worse in comparison to the same attributes from Gems or Runes.
In addition, Jewels do not change their bonuses when you socket them in different items, unlike the Runes and Gems. Therefore, they are a popular option for players that wish to have some extreme item customizers. They can provide bonuses for items that could not be possible to obtain otherwise.
Further, the Jewels can be Rare (up to 4 attributes), Magic or Unique. There are 8 different types of Unique Jewels in Diablo 2 and they all share the same name, which is Rainbow Facet.
Finally, Jewels can have Suffixes and Prefixes (that you can see below) and you can use them in some Horadric Cube Recipes. Thus, think twice before you discard a Jewel.
Socketing multiple runes in the right order into a base items results in a runeword, that grants special bonuses. Jewels don’t really work like that – only the properties of the individual jewels will be added up – there is no bonus appied.
Rare jewels are more difficult to find and they can have up to 4 different bonuses. However, it’s not very likely that you will find one with any modifiers you really want. You will probably have only one socket in your best equipment as well, so you need to add something really powerful.
It doesn’t mean that a Rare Jewel is better just because it offers two more additional modifiers. A Rare jewel with 4 irrelevant bonuses for your character or mediocre modifiers is not better than a Magical Jewel with 1 or 2 really good bonuses.
Note that you can re-roll a Rare Jewel with the Horadric Cube using the 6 Perfect Skull Recipe. This has a maximum affix limit of item level 40 though, making it harder to find good modifiers.
You can see all the available Magic Prefixes and Suffixes of the game in the following tables:
| Affix | Item Type | Attributes | Item Level |
| Blanched | Magic or Rare | +5-8 Defense | 1 |
| Eburine | Magic or Rare | +9-20 Defense | 16 |
| Bone | Magic or Rare | +21-40 Defense | 32 |
| Ivory | Magic | +41-64 Defense | 64 |
| Scarlet | Magic or Rare | +1-4 to Minimum Damage | 8 |
| Crimson | Magic or Rare | +5-8 to Minimum Damage | 38 |
| Carbuncle | Magic or Rare | +1-5 to Maximum Damage | 12 |
| Carmine | Magic or Rare | +6-9 to Maximum Damage | 35 |
| Vermilion | Magic | +11-15 to Maximum Damage | 58 |
| Cinnabar | Magic or Rare | +5-10% Enhanced Damage | 1 |
| Rusty | Magic or Rare | +11-20% Enhanced Damage | 13 |
| Realgar | Magic or Rare | +21-30% Enhanced Damage | 45 |
| Ruby | Magic | +31-40% Enhanced Damage | 66 |
| Dun | Magic or Rare | +7-12% Damage Taken Goes to Mana | 7 |
| Brown | Magic or Rare | Heal Stamina Plus +10-15% | 39 |
| Chestnut | Magic or Rare | +10-15 Max Stamina | 1 |
| Maroon | Magic or Rare | +16-25 Max Stamina | 17 |
| Nickel | Magic or Rare | +10-20 to Attack Rating | 1 |
| Tin | Magic or Rare | +21-40 to Attack Rating | 8 |
| Silver | Magic or Rare | +41-60 to Attack Rating | 25 |
| Argent | Magic | +61-100 to Attack Rating | 44 |
| Bright | Magic or Rare | +1 to Light Radius +10 to Attack Rating | 1 |
| Emerald | Magic or Rare | +3-7% Better Chance of Getting Magic Items | 16 |
| Zircon | Magic or Rare | +5-10 Mana | 3 |
| Jacinth | Magic or Rare | +11-15 Mana | 17 |
| Turquoise | Magic | +16-20 Mana | 29 |
| Shimmering | Magic or Rare | All Resistances +5-10% | 16 |
| Scintillating | Magic | All Resistances +11-15% | 34 |
| Lapis Lazuli | Magic or Rare | Cold Resist +5-15% | 2 |
| Sapphire | Magic or Rare | Cold Resist +16-30% | 19 |
| Garnet | Magic or Rare | Fire Resist +5-15% | 2 |
| Ruby | Magic or Rare | Fire Resist +16-30% | 18 |
| Camphor | Magic or Rare | Lightning Resist +5-15% | 2 |
| Ambergris | Magic or Rare | Lightning Resist +16-30% | 19 |
| Beryl | Magic or Rare | Poison Resist +5-15% | 2 |
| Jade | Magic or Rare | Poison Resist +16-30% | 19 |
| Aureolic | Magic or Rare | +1-3 to Mana after each Kill | 22 |
| Diamond | Magic or Rare | +25-50 to Attack Rating and +25-40% Damage versus Demons | 26 |
| Pearl | Magic or Rare | +25-50 to Attack Rating and +25-50% Damage versus Undead | 18 |
| Affix | Item Type | Attributes | Â Item Level |
| Malice | Magic or Rare | Attacker Takes Damage of 1-5 | 37 |
| Fervor | Magic | 15% Increased Attack Speed | 39 |
| Frigidity | Magic or Rare | 1-5 Cold Damage – 2 Second Duration | 16 |
| Passion | Magic or Rare | +1-3 Minimum and +6-10 Maximum Fire Damage | 15 |
| Ennui | Magic or Rare | +1 Minimum and +10-20 Maximum Lightning Damage | 15 |
| Ire | Magic or Rare | +2-5 To Maximum Damage | 4 |
| Wrath | Magic or Rare | +6-9 To Maximum Damage | 11 |
| Carnage | Magic | +11-15 Maximum Damage | 25 |
| Joyfulness | Magic or Rare | +1-4 To Minimum Damage | 5 |
| Bliss | Magic or Rare | +5-10 To Minimum Damage | 43 |
| Envy | Magic or Rare | +20 Poison Damage Over 2 Seconds | 1 |
| Truth | Magic or Rare | 7% Faster Hit Recovery | 44 |
| Honor | Magic or Rare | Replenish Life +1-4 | 47 |
| Avarice | Magic or Rare | +10-30% More Gold | 1 |
| Prosperity | Magic or Rare | +5-10% Better Chance Of Getting Magic Items | 26 |
| Spirit | Magic or Rare | +3-8 To Life | 1 |
| Hope | Magic | +9-20 To Life | 45 |
| Freedom | Magic or Rare | Requirements -15% | 1 |
| Icicle | Magic or Rare | +2-3 Minimum and +6-10 Maximum Cold Damage for 2 seconds | 37 |
| Glacier | Magic | +4-5 Minimum and +11-15 Maximum Cold Damage for 2 seconds | 58 |
| Fire | Magic or Rare | +4-10 Minimum and +11-30 Maximum Fire Damage | 36 |
| Burning | Magic or Rare | +11-25 Minimum and +31-50 Maximum Fire Damage | 57 |
| Lightning | Magic or Rare | +1 Minimum and +21-60 Maximum Lightning Damage | 36 |
| Thunder | Magic or Rare | +1 Minimum and +61-100 Maximum Lightning Damage | 57 |
| Daring | Magic or Rare | +1-3 Dexterity | 7 |
| Daring | Magic or Rare | +4-6 Dexterity | 19 |
| Daring | Magic or Rare | +7-9 Dexterity | 36 |
| Knowledge | Magic or Rare | +1-5 To Energy | 9 |
| Knowledge | Magic or Rare | +4-6 To Energy | 24 |
| Knowledge | Magic or Rare | +7-9 To Energy | 41 |
| Virility | Magic or Rare | +1-4 Strength | 18 |
| Virility | Magic or Rare | +5-6 Strength | 33 |
| Virility | Magic or Rare | +7-9 Strength | 50 |