Orb of Chance, chance to get unique

[Chronove]

Does someone know the chance to get a unique item of an orb of chance ? / How high is the probability ?

[Coru30]

There is prob a very mathy way of finding out the percentage chance of a chance orb making a unique but who the ♥♥♥♥ is gonna do that. If you want a simple answer its very slim. Its probably about the same as the actual drop rate of the uniques.

[Coru30]

Actually just found this here http://www.pathofexile.com/forum/view-thread/12056/page/1

Orb of Chance - There is a very small chance of upgrading a Normal item into a unique of the same base type when using an Orb of Chance. For example if you want the Andvarius unique ring then you should use an Orb of Chance on a Gold Ring of Normal rarity. Exact success rates for Orbs of Chance are unknown.

It also says.. Drop Rate - The actual drop rates of unique items are unknown to us. The only info we have to go on is:
"
Chris wrote:
Stratified the drop rates of Unique items so that some of them are more common (especially build-enabling ones), and powerful ones are still extremely rare.

The drop rates of Unique items are no longer proportional to their item type. A common Unique ring is now as likely to drop as a common Unique weapon.

so i dont think there is actually a way to find it out.

[Lagwin1980]

https://www.pathofexile.com/forum/view-thread/35870

Now outdated but gives you a rough idea, some uniques are harder to roll than others and some are only obtainable on base items from high end maps, think it's tied to the item level of the gear.

[LemurM]

There are some rings and armors that is more worth trying to make the unique like the onyx amulet because there are 3 unique amulets made of onyx. You can search for the others weapons and armors that is worth using the orb of chance on.

[MushaConvoy]

I got a unique in only 20 tries using Coral Rings in order to get Kaom's something-or-other - the one that increases maximum Endurance charges. It has no level requirement so basic Coral Rings you buy from vendors (for 3 wisdom scrolls no less) have a chance, where some of the other rings have a level requirement on the ring you use... such as: http://pathofexile.gamepedia.com/Le_Heup_of_All

[stan]

Its is unclear, but i personally made a Sidhebreath with around of 20-30 orbs on paua amulets. On the same time, have at least 20 tries for Shavrons with zero success. My guess is that is drop chance based: rarer the unique, less likely to chance

[yampot]

Probability is determined by the base item you are chancing. Valid items to be chanced into uniques are determined by whether or not they can drop in the first instance - eg. you can use a Orb of Chance on a Imperian Skean to potential get Divinarius unique which is map only because using chance orb ignores itemlevel (but this isn't so for obtaining unique from a drop). You can't use an chance orb on a Prismatic Ring to get The Taming which can only be crafted. If you use a chance orb on an Occultist Vestment the probability is the same to get either Infernal Mantle or Shavronne's Wrappings (even tho' they are different rarity tiers on drop).

Some uniques are more unlikely to be obtained by chancing.

Drop rates are different from chancing items.

[ogR1sH]

Originally posted by yampot:

If you use a chance orb on an Occultist Vestment the probability is the same to get either Infernal Mantle or Shavronne's Wrappings (even tho' they are different rarity tiers on drop).

I think this is not true. You have a much higher chance to get Infernal Mantle than Shav's when using a Orb of Chance. Same with iron rings, you will statstically see more Black Heart Rings chanced than Le Heup of Alls, etc etc

[MushaConvoy]

Originally posted by stan:

Its is unclear, but i personally made a Sidhebreath with around of 20-30 orbs on paua amulets. On the same time, have at least 20 tries for Shavrons with zero success. My guess is that is drop chance based: rarer the unique, less likely to chance

Seconded. I've done around 50 Chance Orbs on a Siege Axe (you know what I'm after), have nothing to show for it. At the moment, I'm getting more Chance Orb drops than I'm getting white Siege Axes......

[Li Shengshun/Bk-201]

After which lvl can i consider trying to forge items with the chance orbs and what would be the best to do it with? (playing bow-shadow).