Quick and Easy Buying Guide

Carat weight: 1 carat = 200 milligrams = 6.5 mm diameter. Doubling weight doesn't double diameter.

Diamond clarity: FL/IF/VVS/VS = super expensive, near perfect. SI = best value if you can check a photo for obvious inclusions (defects).


Color: D-G = colorless, expensive, only if you have money to burn. H-J = best value. Can go lower in gold metal settings than white metal.

Cut: Better cut ratings let more light into a diamond, making it sparkle more. Very important property, don't skimp here.

Set a budget and minimum cut (Premium). Go J color for gold and I/H for white metals. Go searching for SI1/SI2 clarity diamonds at James Allen. Pick a diamond with small/no inclusions. Choose a ring setting and buy it risk-free (60-day returns).

Mariah Carey Engagement Ring

Mariah Carey has been a famous musical artist for more than two decades and is one of the world's bestselling musical artists of all time. From her first recordings in 1990 she has gone on to become one of the most famous musicians of our generation. She has sold an estimated 200 million albums, singles and videos which is truly phenomenal. She also has one of the most talented voices in modern pop music.

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Her husband Nicholas Cannon is an American actor, comedian and rapper. He proposed to Mariah with an emerald shaped diamond reputedly around 10 carats in size and worth several million dollars. The ring has a large number of smaller diamonds surrounding the centre diamond making a total ring weight of about 17 carats.