http://mentalfloss.com/article/68465/8-supposedly-cursed-gems
https://www.livescience.com/18407-mysterious-cursed-gems-diamonds.html
https://io9.gizmodo.com/6-pieces-of-real-life-cursed-jewelry-that-could-destroy-1449245621
https://www.naturallycolored.com/famous-diamonds/cursed-diamonds
http://www.pbs.org/treasuresoftheworld/hope/hcurse.html
https://en.wikipedia.org/wiki/Hope_Diamond
https://en.wikipedia.org/wiki/Koh-i-Noor
https://www.icecarats.com/blog/top-10-they-are-cursed-they-are-notorious-they-are-diamonds
https://en.wikipedia.org/wiki/Black_Orlov
https://www.gemselect.com/help/newsletter/newsletter-mar-12.php
https://navrangindia.blogspot.ca/2015/05/the-world-famous-sancy-diamond-of.html
https://en.wikipedia.org/wiki/Shah_Diamond
https://en.wikipedia.org/wiki/Regent_Diamond