Foundational Base Realm (Small, Iron, Gold etc.)
First Stage (Small)
Second Stage (Iron)
Third Stage (Gold)
Fourth Stage (Master)
Fifth Stage (Grandmaster)
Building Qi Realm
3 Stages are split into 9 parts (lower, middle and upper) note: 'Peak' is always part of upper
Dantian Stage (Actually what 'peasants' termed as Sage)
Meridian Stage
Condensing Qi stage
Cleansing Body Realm (optional)
This realm does not have any stages. It focuses on purifying the body, and it can be done as many times as you'd like. People can only be purified so far based on their talents or if they consume Heavenly Elixirs.
Core Formation Realm - 3 TRIBULATIONS
3 Stages split into 6 parts (upper and lower)
First stage = Core is size of a pea
Second Stage = Core is size of a grape
Third stage = Core is size of a plum
Nascent Realm (condensation and refinement of the soul) - 6 TRIBULATIONS
Lower Nascent Stage
Middle Nascent Stage
Upper Nascent Stage
Divine Transformation Realm - 9 TRIBULATIONS
This is the stage where cultivators can transcend into the next plane. Can only do so at the end of each stage's tribulations, if wants to ascend then you have to complete the next set of tribulations.
The stages depends on the cultivator, they can go through multiple rounds of tribulations.
Stage 1 would be the original 9 TRIBULATIONS
Stage 2 would be 10 TRIBULATIONS
Stage 3 would be 11 TRIBULATIONS
etc.