Of course it is. It is not really the carat weight but the quality of the stone. And as far as that goes, if it is given and received as a token of love, why should either of those things matter?
Yes, a 10 carat diamond is 'good'.
"Good" is a judgement and you are the judge.
A one carat diamond weighs one carat, or .20 grammes.
One carat diamond weight is equal to .20 grammes.
The price of a 1-carat diamond can vary widely depending on several factors, including the diamond's cut, color, clarity, and carat weight.
First, understand that if your 'one carat' diamond has '80 points', it may not weigh one carat. Then, take your diamond to a certified gemologist who can tell you 'how much' can be attributed to your diamond.
On the high end, a 1 carat, round diamond in a D color, IF clarity GIA certified diamond is for $8126 and if you adjust the color and clarity, a 1 carat H color, VS1 clarity GIA certified diamond is for $3496.
About $800
1 Carat = .2 grams = 100 points
The diamond either weighs 100 points, or a full carat, or it weighs 80 points or 80/100ths of a carat.
Yes. In fact, 1 carat = 0.00705479239 ounces
A 1.00 point diamond is one carat, so a .12 point diamond is a little over 1/10th of a carat.