Air is more like Azure. Light maybe Opal? Also, I'm not sure if Turquoise is a gem, plus i think Amber is only solid wax. Death should be Bloodstone, a fictional ore.
The sole reason why I didn't put Azure in
![Air :air](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/air18x18.png)
was also because I was not sure if it was a gem, plus Pearl (like Amber) is also often considered a gem despite being living creatures' product. Let's face it: Several types of gems are stones, the others are metal, and the rests are biological like Amber and Pearl. Even I as an OCD person totally accept it now.
I think Diamond would be good for
... Tourmaline could work for
... it can have a very nice sky blue color.
http://elementscommunity.org/forum/index.php?action=post;quote=1140681;topic=52763.996
Kyanite is another good option for
http://www.gemstonebuzz.com/kyanite
Never heard of both Tourmaline and Kyanite, thanks for reference. The name implies that Kyanite is blueish, though (Cyan).
I solved a similar problem when i made my Gem Factory serie.
Here is the table i've come up to:
![Aether :aether](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/aether18x18.png) | Turquoise |
![Air :air](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/air18x18.png) | Sapphire |
![Darkness :darkness](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/darkness18x18.png) | Obsidian |
![Death :death](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/death18x18.png) | Charoite |
![Earth :earth](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/earth18x18.png) | Zircon |
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png) | Amethyst |
![Fire :fire](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/fire18x18.png) | Ruby |
![Gravity :gravity](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/gravity18x18.png) | Amber |
![Life :life](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/life18x18.png) | Emerald |
![Light :light](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/light18x18.png) | Diamond |
![Time :time](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/time18x18.png) | Chrysoberyl |
![Water :water](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/water18x18.png) | Aquamarine |
Never heard of Charoite, Zircon, and Chrysobery either. Going to look at your thread after this.