With the price of fine sapphire climbing to new heights in the late 1980s, the search is on for replacement blues. One gem that some dealers mention as a sapphire substitute is indicolite, a member of the tourmaline group whose name comes from indigo but whose finest colors more often suggest the menthol blue of topaz than the denim-to-dusky blues of corundum.


Fine Color Precious Stone Alternate Spelling Wide Color Blackish Blue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Modern Jeweler Magazine 1990

Authors and Affiliations

  • David Federman

There are no affiliations available

Personalised recommendations