Cardi B wasn't just glowing from her pregnancy during her Coachella performance Sunday ... she was also glowing thanks to a hefty, super expensive chain around her neck.
Celebrity jeweler Elliot Eliantte tells us Cardi put the idea of doing a Lola Bunny Chain in his ear about two months ago, but waited until 5 days before her main stage Coachella debut to actually put in the order.
Eliantte had to work overtime to get it done since the chain and pendant are littered with 110 carats of diamonds valued between $350k and $400k.
Cardi clearly liked it because she gave Eliantte a shout-out on her social media from the festival wearing the expensive ice around her neck during Migos' set.