It gives you many opportunities as it is flexible in the handling. The main pendant has other texture slots than the small ones, you can remove the jewels with opacity and this will make the 3d square pendants fully visible.
Please refer to the small icon for the piece you are purchasing / deriving...
Map 00 Texture reference:
Map 02 + 03 (pearls):
Map 01 + 05 (pendants):
By imvu rules you are also allowed to set your derived version to derivable ;).
