I have a rose gold dbty .07 16 inches and am going to buy a dbty style sapphire pendant .15 in rose gold also. I would like to layer them quite close to each other. What do you think the length of the sapphire should be (I cannot try it on) ? I have the choice between 16.6 and 17.7 (European conversions
). I have a 17,7 necklace that is a little lower than I’d like but I’m worried 16,6 isn’t enough. tia 

