assembled gem

{{Short description|Gemstone made up of other gems}}

An assembled gem (also called a composite gem){{Cite book|url=https://books.google.com/books?id=b-7fBAAAQBAJ&q=composite+gemstones&pg=PA212|title=Gemmology|last=Read|first=P. G.|date=2013-10-22|publisher=Elsevier|isbn=9781483144672|language=en}} is a gemstone made up of other smaller gems.{{Cite encyclopedia|url=https://books.google.com/books?id=9n4tAjDtC3UC&q=%22Assembled+gem%22++gem+that+is+made+from+smaller+stones|title=Assembled gem |encyclopedia=The New Encyclopaedia Britannica|date=1992|publisher=Encyclopaedia Britannica|isbn=9780852295533|language=en}} An assembled gem can often be a fake gem with a desirable piece of gemstone attached to pieces of inexpensive imitation gemstones.{{Cite news|url=https://www.thespruce.com/avoiding-fake-and-manipulated-gemstones-2042960|title=Fake Gemstones|work=The Spruce|access-date=2017-10-20}} For example, a combination of a thin layer of green glass and a colorless piece of quartz would be a composite gem.{{Cite book|url=https://archive.org/details/groovygems0000pete|url-access=registration|page=[https://archive.org/details/groovygems0000pete/page/23 23]|quote=composite gem.|title=Groovy Gems|last=Petersen|first=Christine|date=2010-01-01|publisher=ABDO|isbn=9781616139339|language=en}}