Depending on the colors, the size of the axolotl and its age, different prices are possible in sales between individuals, here is a brief summary, of course everyone is free to refer to it or not.
First of all it is considered that an individual should be sold only from its 10 cm, before the risks of mortality are still important and the feeding stage must include an axolotl eating bloodworms and pellets or only pellets, (for greater ease of feeding and therefore success for the purchaser).

Albino axolotl (white coat, red eyes, of course includes gold), leucistic axolotl (white coat and black eyes), wild axolotl (golden circle in the eye and spotted coat, colors may vary): € 1 per cm or a 10 cm axolotl will be sold for € 10. Why? Because these colors are the most common

Melanic axolotl (black, gray, white dress but black and full eye without golden or glowing circle): 2 € per cm or 20 € for an individual of 10 cm.
Axolotl copper (spotted with brown, beige, with absence of black pigments) € 2.50 per cm which gives us € 25 for an individual of 10 cm.
Melanic cooper axolotl (light to dark brown coat, slightly spotted or not) and axanthic axolotl, 2.5 to 3 € per cm or 25 to 30 € for an individual of 10 cm.

If it is an urgent adoption, do not be too "greedy", give your axolotl at a low price or even give it away, it is the least of things so that this little loulou quickly finds a welcoming home, and above all, find out about its future habitat and the knowledge of the purchaser. If necessary, explain to him the complete and detailed maintenance, the axolotl living many years be responsible!

For the buyer: a thin axolotl, or with ugly stunted or atrophied gills is a sign that should alert you! Also watch her toes as they melt away as the back veil indicates potential infection. Always observe a period of quarantine which will give you time to observe your loulou's skin and its appearance. And finally check his stool to be sure that there are no parasites present.

Here are now the colors of our loulous when they are very small, then larger this so that you learn to recognize them:

In addition to this, you will need to know more about it.