Diamonds have a standard set of metrics which are verified for certification. They are essentially a commodity. I wonder what BlueNile's revenue for loose diamonds is vs. revenue for bands.
Shoes are slightly different than clothes. While fits do vary slightly, it's not even remotely close to the variations in clothing. Online shoe shopping also produces better results than clothing. Things like feel aren't are varied either and the details are not nearly as important. I wouldn't buy expensive shoes online, but for most types of shoes, I much prefer online vs. b&m. Partially because of variety and partly because of my size (13 US).
Contrast this to my online clothes shopping habits, where probably at least 50% of my purchases are returned.
Shoes are slightly different than clothes. While fits do vary slightly, it's not even remotely close to the variations in clothing. Online shoe shopping also produces better results than clothing. Things like feel aren't are varied either and the details are not nearly as important. I wouldn't buy expensive shoes online, but for most types of shoes, I much prefer online vs. b&m. Partially because of variety and partly because of my size (13 US).
Contrast this to my online clothes shopping habits, where probably at least 50% of my purchases are returned.