[Shaun @ Tru6]

Granite is 1.25" thick. yes, these two blades get good reviews. also need to cut a hole for the faucet.

RIDGID 7 in. Diamond Stone Blade for Cutting Granite, Marble and Hard Stone-GS70SP at The Home Depot

QEP 7 in. Black Widow Micro-Segmented Diamond Blade for Porcelain and Ceramic Tile-6-7008BW at The Home Depot

1-3/8" Dry/Wet Diamond Core Drill Bits for Marble/Granite/Eng. Stone /Hole Saw - Bathroom Sink Drains - Amazon.com

QEP 1-3/8 in. Diamond Hole Saw for Ceramic Tile-10059 at The Home Depot