The cost of appraisals is $120 for the first item, and $90 for each subsequent item. For larger stones (≥ 1.00 carat), for which a plot should be drawn, a fee of $25 is assessed. A plot diagram is not necessary if the stone has an existing certificate from a reputable lab. Estate valuation work is billed at $240 per hour with a $60 minimum. This rate is charged only for exam time but includes all research and document preparation.