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Grand Spectrum
Cobalt Jewel
Limited to: 325% increased Critical Strike Chance per Grand SpectrumThoughts that shimmer like light across the rain.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.Grand Spectrum (Cobalt Jewel) inventory icon.png
Vendor Prices
Unique8x Chaos Orb
Vendor Offer
4x Alchemy Shard
Metadata
Item class: Jewel

Grand Spectrum is a unique Cobalt JewelCobalt JewelPlace into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket. and one of three unique jewels that share the name 'Grand Spectrum'. The other two are Grand SpectrumGrand Spectrum
Crimson Jewel
Limited to: 3+7% to all Elemental Resistances per Grand SpectrumSkin like steel tempered by bright flames.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.
and Grand SpectrumGrand Spectrum
Viridian Jewel
Limited to: 315% increased Elemental Damage per Grand SpectrumFists that strike like a falling tree.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.
.

Modifiers

Grand Spectrum grants additional stats based on how many jewels called 'Grand Spectrum' are placed into jewel sockets on the character's passive skill tree. Any 'Grand Spectrum' jewels are counted when determining the bonus, not only those with the same Jewel base type.

Jewel limit is shared among all other versions of Grand Spectrum.

Effect calculation

The total magnitude of the bonuses granted by socketed Grand Spectrum jewels of type is

where is the nominal magnitude of the bonuses granted by Grand Spectrum jewels of that type, is the number of socketed Grand Spectrum jewels of that type, and is the total number of socketed Grand Spectrum jewels.

Bonus # of Grand Spectrums (Cobalt)
1 2 3
Total
Grand
Spectrums
1 25% N/A N/A
2 50% 100% N/A
3 75% 150% 225%

Item acquisition
Questionmark.png

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

AmountIngredientGeneral
Notes
Type
4The Garish PowerThe Garish Power4JewelMaligaro may have valued function over form, but that did not mute his flair for the dramatic.random jewelAutomatic
10The Eye of the DragonThe Eye of the Dragon10Jewel
Corrupted
Some powers are far too great even for the
gods of old.
random corrupted jewelAutomatic
8Arrogance of the VaalArrogance of the Vaal8Item
Two-Implicit
Corrupted
Discovery can lead to beauty, or it can lead to ruin.
random two-implicit corrupted itemAutomatic
4Jack in the BoxJack in the Box4ItemTurn the crank,
close your eyes,
and pray to the gods
for a pleasant surprise.
random itemAutomatic
1Singular IncubatorSingular IncubatorAdds an incubated Unique item to an equippable item
Item drops after killing # monsters
Unique ItemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
random itemAutomatic
1The VoidThe Void1Reach into the Void and claim your prize.random divination card set exchangeAutomatic

Legacy variants

Grand Spectrum has legacy variants.

Version Discontinued Modifiers
3.10.0


  • 25% increased Critical Strike Chance per Grand Spectrum
  • Gain 30 Mana per Grand Spectrum
3.0.0


  • 25% increased Critical Strike Chance per Grand Spectrum
  • Gain 15 Mana per Grand Spectrum

Version history

Version Changes
3.10.0
  • Now grants 25% increased Critical Strike Chance per Grand Spectrum (from +30 to maximum Mana). Existing versions of the item are not affected.
3.0.0
  • Cobalt Grant Spectrums now grant 30 Mana per Grand Spectrum (from 15).
  • The following changes affect existing items automatically:
  • Now limited to 3. Note that this limit is shared across all versions of Grand Spectrum.
2.3.0
  • Introduced to the game.
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