To describe the scenario where an object is on someone’s finger in English, you could use the following sentence:
“There is an object resting on the person’s finger.”
Or, if you want to be more specific about the type of object, you could say:
“There is a ring on the person’s finger.”
Or, for a different object:
“There is a locket on the person’s finger.”
These sentences provide a clear and straightforward description of the object being present on a finger.