OK, I've worked it out. I think Hone Claws will affect the damage, so I have included it in the calculation.
It will do 213032 - 250626 damage. This assumes no held item.
If Sableye has a Dark Gem, as is in the question, then the attack will do 319543 - 375933 damage.
If Sableye is holding a Choice Band (it was baton passed the Hone Claws boost, and someone else used Swagger on Abra, and Abra didn't switch out for some reason), then it will do 31953295 - 37592112 damage.
In other words Abra will die very quickly :)