Caitlin Clark was on the receiving end of a sick alley-oop from Erica Wheeler ...

'cause the WNBA star rookie just got an iced-out diamond chain from her teammate's jeweler -- and it's dope!! A while ago, Wheeler -- who signed a multiyear deal with the Fever in 2023 -- shared a video on social media showing off a diamond-filled chain and pendant featuring her jersey number. Clark -- who was right beside her -- said she wanted one, too. So, Wheeler made a call to her jeweler, the GLD Shop, to hook her friend up .

.. and they delivered!! The GLD Shop revealed Clark's custom No.

22 pendant on Friday ...

which is decked-out in 1,000 handset VVS diamonds. CC was clearly thrilled with the results ..

. 'cause when she was rocking the new ice on Friday, she was smiling ear-to-ear. The 22-year-old has every right to treat herself -- Clark is helping the Fever rise up the Eastern Conference standings, averaging 17.

8 points per game. She also recently made history with the most assists in a single WNBA game. Considering the year she's had .

.. yeah, it's well-deserved.

.