Here are some quick recent measurements:
* 4.2% of users searching for diamonds online are using a cell phone or iPad
* 3.6% of users looking at jewelry online are using a cell phone or an iPad
* 1.5% of retail jewelry store owners are using a cell phone or iPad for B2B
Here are some quick measurements from April 2010
* 3.2% of users searching for diamonds online are using a cell phone or iPad
* 1.9% of users looking at jewelry online are using a cell phone or an iPad
* 0.6% of retail jewelry store owners are using a cell phone or iPad for B2B
The number of users moving to the mobile space is gaining speed RAPIDLY. There are already more smart phones on the planet than regular computers.
You need a mobile website.
The iPhone seems to be the favorite for people looking for jewelry online, followed by phone using the Google Android software. The Blackberry is very quickly dropping in ranking as the phone a jewelry consumer is using.
To find out how many people are using mobile devices on your website go to your Google Analytics. On the left side click Visitors, then under that click Mobile, and finally click Mobile Devices.
This will show you the number of people using cell phones to view your website.
Also take a look at the Mobile Carriers page. This shows which cell phone companies your visitors are using.