WWYD? Friend owing you $

Uiowachick01

So I live 9 months in the US and 3 months in Europe.  I was there from March to June last year.  I bought a friend a $100+ item and she swore she'd pay me back.  Well that was June.  She has the item and hasn't mentioned my $ in months. She isn't hurting financially and she is out buying new tvs and furniture.  How would you ask for your $ back? I don't want to sound rude but I feel like the time has come to ask or I may never see my $.