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:
It is a carryover from Lotus 1-2-3, where formulas can be entered as +123+456 instead of =123+456. Excel permits that form as well. It changes the first to the latter.But it changes +A1+B1 to =+A1+B1 for no good reason that I can think of. In any case, there is no reason to use the +A1+B1 or =+A1+B1 convention.+ isn't really necessary, it's the same as =. In older spreadsheet programs, formulas began with +, e.g. +A1+B1. For compatibility, Excel accepts formulas like that, but because formulas must begin with =, it prefixes an =.