Chapter 1 - Introduction to Physics - Problems and Conceptual Exercises - Page 15: 26

$530.2~carats=0.2343~lb$

We know that $m=530.2carat(\frac{0.20g}{1carat})(\frac{10^{-3}Kg}{1g})$ $m=0.10604Kg$ Now we can convert this mass into pounds as $weight=0.10604Kg(\frac{2.21lb}{1Kg})$ $\implies weight=0.234pounds$