Carat is the unit of measurement of gemstones and pearls. Carat is defined exactly 200mg which equals 3.086 grains. One carat is equal to 0.2 grams. Or 100 points, which is another unit of measurement in diamond industry. Carat engagement rings range from 1 carat to 10 000 carats.

The quality of diamonds can be judged by the carat weight. The most popular engagement rings size is one carat. The engagement ring having many gems may weigh more than 1 carat. The total carat weight of a ring is the weight of the diamond combined with other stones used in it. Diamonds with magic size are those that weigh exactly at or near a major size category, e.g. .25ct (1/4 ct), .33ct (1/3 ct), .50ct (1/2 ct), .75ct (3/4 ct), and 1 ct.

Some people like this concept of total carat weight but others feel it is less valuable because
it includes the weight of other stones as well. One carat rings for engagements are available in various designs. They may have a single diamond or multiple stones.

The exotic solitaire diamond ring is the choice of many couples. Engagement rings with round or oval gems are also very elegant. Platinum, gold, silver and white gold is preferred for engagement rings with gorgeous emerald, sapphire and other precious stones.

Three stones instead of a single stone may increase the carat weight but looks very sophisticated. You can also have a 2 carat ring for your engagement. Carat rings are available in numerous carat sizes like 1 carat, 1.26 carat, 2 carat, 3 carat, 10 carat and 10,000 carat.

If your sweetheart loves big stones then you may go for a shining and mesmerizing 10,000 carat diamond engagement ring. But it will be quite expensive.