Ruby in Zoisite or Oh, The Tragedy

I have posted about this lovely stone in the past, here.  I decided to go through my remaining specimens to find some additional pairs for earrings.  You know how I love to make pairs. I found several suitable pairs and listed one of them in my etsy shop.    Click on the photo to go directly to the listing.

I found a couple more pairs, one of which is causing me great consternation and frustration.  The top of one of the stones is severely chipped.  So badly in fact, that even after two attempts at wrapping it, I set it aside to wait for a better idea.

As you can see, that's a pretty decent pair, considering the random patterning typical of ruby in zoisite.  Here is a close up of the chip.  It breaks my heart.

I thought the wire wrapping would hide the chip, but all it really did was accentuate it.  I'm considering using some modeling paste to "build up" the chip area to give the stone the same shape as the other one.  If anyone has tried this, please let me know.  Or, if you have any other ideas on how I can make this work, please share.  Thank you!