You can't unlock it, jewelery is only available if you have the Bon Voyage expansion pack.
Chat with our AI personalities
To unlock cars on the Sims 2, you'll need Sims 2 Nightlife.
Click on a mirror and select the 'Change Appearance' option and to change to clothes click on a dresser and select the 'change outfit' option. Something like that.
use the unlock all objects cheat
You can't change your sims height..
you have to buy sims 2 buisness carreer expansion pack