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).
Although the list isnât quite a definitive âwhoâs whoâ of womenâs tennis in the Open Era â many Grand Slam champions such as Conchita Martinez and Jana Novotna never attained the top spot â all the major stars of the WTAâs 40 years are here. 1  1. Chris Evert, ranked no.1 for 260 weeks between November 1975 and November 1985.