If 1 carat=200 mg1 \text{ carat} = 200 \text{ mg}1 carat=200 mg, how many kilograms are in a 500 carat500 \text{ carat}500 carat diamond?
0.01 kg0.01 \text{ kg}0.01 kg
0.1 kg0.1 \text{ kg}0.1 kg
1 kg1 \text{ kg}1 kg
0.001 kg0.001 \text{ kg}0.001 kg