Ed. list a wide range of wholesale prices for faceted gem rubies. Prices are dependent on origin, color, size, and clarity: from a low of $100 to $15,000/ ct maximum. Burmese stones in 1/2 to 1 ct sizes with slightly purplish red color and light inclusions range from $300 to $3000/ ct, for example.
The Microsoft Excel ISNA function can be used to check for a #N/A (value not available) error. The ISNA function is a built-in function in Excel that is categorized as an Information Function. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the ISNA function can be entered as part of a formula in a cell of a worksheet. The syntax for the ISNA function in Microsoft Excel is:
ISNUMBER Function Overview. Excelâs ISNUMBER function is one of a group of IS functions or âInformation Functionsâ that can be used to find out information about a specific cell in a worksheet or workbook. The ISNUMBER function's job is to determine if the data in a certain cell is a number or not. 1  If the data is a number or is a formula that returns a number as output, a value of TRUE is returned by the function - the example in row 1 in the image above;