[uh-sem-buh
ld] 
| noting an artificial gem formed of two or more parts, as a doublet or triplet, at least one of which is a true gemstone. |
| un·as·sem·bled (ŭn'ə-sěm'bəld) adj. Made or manufactured with parts or sections ready to be joined or fitted together before use: working with unassembled metal shelving. |