Here is the fruit

Where is this tree found?

Colombia Suramerica

I was thinking it may be some sort of Diospyros species but I am not very sure, the fruit does not really look like that. What city in Colombia?

I'm not know flora of Colombia very good, but in general to determine plant you have ot do following steps. Firstly you must to obtain list of the local flora and try to use local keys for plant determination based on it's morphological characters.

Also I have doubt that this plant is Diospyros.

I agree with the Pouteria ID, at least from a distance

I agree on Sapotaceae; Where did you collected ? Is it wild or collected from Garden?

Fruits look like Sapotaceae. Did you find Diploknema or Madhuca in local flora? Try once.

Rosaceae　（family)，　Photinia (genus)?

To me it is also a Sapotaceae, maybe genus Manilkara?

It might be Pittosporum undulatum

It might be some Pittosporum species. You should wait for the fruit to open or dissect them to see their inter structure.

Pittosporum undulatum

Yes looks like Pittosporum undulatum, a native rainforest species of NSW Australia. Try looking at http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Pittosporum~undulatum.... this plant is now an invasive weed in urban bushland.

Hi, to all of you, well my god thanks for all the answers and yes is a Pittosporum undulatum I read all the answers and did a segregation with all the genres and now i´m really happy with the result, I collected in Bogotá colombia, and I feel very intrigued to have found this plant here, beside this plant developed easily in urban areas often take precedence over other native plant species or common in this city. Again I appreciate the good feedback, served me a lot.

The Australian Pittosporum undulatum is a serious problem from the conservation point of view in the Azores Islands and, in a lesser extent, also in Madeira and the Canaries. I consider very important to eradicate the population in question, especially if the number of individuals involved is low. In Tenerife local authorities are (or were) making campaigns to eradicate this plant in the wild, as it had colonized some natural forest areas. Fortunately, the degree of invasion is not so high as in the Azores...