Clarice

To my knowledge, KLAR-is (or KLER-is) is strictly a British English pronunciation of the name. In the U.S. and France (and most other places where this name is used), it's pronounced kler-EES or klah-REES. [noted -ed]

I have never heard this name pronounced KLAH-ris. I have known two people with this name, and heard of many others, and they all pronounced it cla-REES. I think it's much prettier that way. KLAH-ris sounds almost masculine.