Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: up to what size of gem does this test? just whatever fits under the hood?
Document: learn what its used for and how to use it and it can be one of the most valuable investments. This refractometer has the capability to differentiate between diamonds, moissonites, and zirconia's as well as other gems. This device can be a big money saver.I have already identified several diamonds and gems not to be authentic. This isn't your all-in-one gem tester, but I think it is one of the most fundamentally significant tools. Educate yourself.
Very simple to use, clean design, no fluid required. A quality instrument for the serious gemstone collector. Indentification software a bonus!
I love it and use it regularly!
I got my Digital Refractometer quickly, and have found it HUGELY useful. It is the first refractometer I have found that does not use the refractive index fluid. This is important to me because the fluid is known to be carcinogenic. Instead, it uses a laser to tell you the refractive index of an unknown stone. It came complete with a chart of what each stone's index is so there is no guess work involved.
Answer: no