Im looking to get either a 10k or 14k 1/2 carot White gold Journey Necklace. Ive been looking around at places and I've asked the real differences at the shops and of course they guide me to the 14k because of the price difference, but is there an actual drastic difference? The 10k 1/2 carot is $300 and the 14k 1/2 carot is $400, any help is appreciated, thanks!