Does anyone know where Selena Gomez got her diamond heart necklace?

And no, I’m not talking about her heart charm she was awarded. You see her wearing it on her youtube video blogs with Demi Lovato. It’s really cute!! Thanks to everyone who helps (or tries)!!!

is it the gold one she always wears on youtube?
if it is
then she got it in a jewlery store i supose lol
lol kay lol

Diamond Heart Necklace
Diamond Heart Necklace
Diamond Heart Necklace