Hey there,
You're very welcome! No, on the face of things, the score doesn't diminish in value. After all, it's an objective measure and it reports the same. However, for most people it can count more because it might be their more recent example of academic prowess. For example, if you graduate from undergrad in Year X, take the GMAT in X+4, and apply in X+5, then obviously they'll place a little more emphasis. That emphasis grows as you apply later. However, you graduated and took the GMATs very close together. So they'll know you can do well and have (I assume) a good GPA but then they'll look at the rest of your profile to make sure you have the quant experience to stand your own.
So think about your position from various angles. What do each of them mean and say about you? If there's a time component to any of them, think about how to address that!
I know, I know, easier said than done

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Bhavik