Best Answer: Today, the national average for the diamonds chosen for engagement rings with regard to carat weight is 0.38 carats. In general, the carat weight averages of engagement ring diamonds are increasing.
Now have you ever wondered what is up with tennis players and the noises they make when hitting the ball back and forth. Well, they have every right to make these noises. Venus Williams served the world's fastest tennis ball among women which was clocked at 56.95 m/s (127.4 mph). That's twice the speed limit on a regular highway in New York City. Tilden holds the title of World's fastest tennis ball served among men with a speed of 73.14 m/s (163.6 mph).
Sabine Lisicki sets record for fastest serve in womenâs tennis - but loses. Sabine Lisicki has broken Venus Williamsâs record for the fastest serve in womenâs tennis. The world No29 recorded 131mph â two miles an hour faster than Williams achieved at the 2007 US Open. Lisicki set the record during a first-round defeat in the Bank of the West Classic in Stanford, US.