Thank you for sharing; some interesting ones, there!

Rubies and emeralds could potentially be of interest when {Doq/SuD; X rur.} to describe the color of something. It's worth noting that there is a certain span of colors that rubies and emeralds can take, though, so be mindful that a Klingon might not imagine the exact same color as we do if you say {Doq; nIb DItlhon.} or {SuD; nIb patmor.}.

A while back, I asked a question on the conworlding Stack Exchange about whether or not we would expect to find well-known gemstones on other Earth-like planets, specifically because I was thinking about whether or not it would be of interest to ask about their Klingon names. There were some interesting answers:

https://worldbuilding.stackexchange.com/questions/108397/would-earthlike-planets-in-other-solar-systems-have-well-known-earth-gemstones-s

It does seem likely - or at least not incredibly _un_likely* - that the cardinal gems would be found in some quantity, as their formation is quite simple.

However, their abundance and categorization might differ, since the same mineral can take a range of colors (for example, rubies and sapphires are both varieties of corundum), and conversely two different may have similar features (for example, I wouldn't be able to tell ruby from red beryl).

//loghaD