The heroine of the book I’m reading inherited a sapphire and diamond necklace with a “big, round, deep blue sapphire in the center” and (get this!) “two other smaller, but equally huge, diamond-surrounded sapphires flanking it on each side.”  Well, are the flanking sapphires smaller than the center stone, or are they equally huge?  They can’t be both.  And where else would they “flank” the center stone except on each side?  Nonsensical stuff like this drives me crazy!