- Building the Jeweled Triceratops Masterpiece (ten Rough Rubies).
- Building the Seal of the P.O.S. (five Rough Rubies).
- Buying the Guitar 4 Loop at Pall Wall's page (one Rough Ruby).
- During a certain time on MLN, Rough Rubies used to be worth a fortune due to the fact that there were lots of Ruby shortages. One Rough Ruby was equivalent to 150-200 clicks when auctioned.
- These Gems are among the most difficult Items to obtain because the only way to acquire them is by clicking on certain Modules.
|Items of Rank 4|
|Dino Scale | Dino Fang | Dino Horns | Rough Diamond | Rough Ruby | Rough Sapphire | Brachiosaurus | Protoceratops | Stegosaurus | Eoraptor | Velociraptor | T-Rex | Green LEGO Brick | Purple LEGO Brick|
|Rank 0 | Rank 1 | Rank 2 | Rank 3 | Rank 4 | Rank 5 | Rank 6 | Rank 7 | Rank 8 | Rank 9 | Rank 10 | Items|