How much is knife in mouth - case hardened (blue gem) worth? Price and value
As of October 17, 2026, knife in mouth - case hardened (blue gem) is worth about 2,076 Robux, its Recent Average Price (RAP), and the cheapest copy for sale is priced at 6,767 Robux. Across the 99 owned copies, its estimated market value is 205,524 Robux.
That puts the cheapest copy 226% above RAP. Sellers are holding out for more than the item has recently traded at, which is normal for a UGC Limited with few copies on the market.
How rare is knife in mouth - case hardened (blue gem)?
Knife in mouth - case hardened (blue gem) is a UGC Limited Face Accessory with 99 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for 100 Robux.
At 2,076 Robux, RAP sits 21x the 100 Robux it first sold for.
knife in mouth - case hardened (blue gem) has 77 favorites on the Roblox catalog.
knife in mouth - case hardened (blue gem) sales history
RBX Invest has recorded 283 sales of knife in mouth - case hardened (blue gem) across 66 trading days, from Jun 23, 2023 to Sep 27, 2026.
Sales here include copies bought from the creator’s original stock as well as resales between players. Free promotional claims are not counted.
Its highest daily average sale price was 1,500 Robux on Aug 2, 2026, and its lowest was 100 Robux on Jun 23, 2023.
By calendar year, its average sale price went from 181 Robux in 2023 to 3,911 Robux in 2026, up 2061%.
| Month | Average sale price | Sales |
|---|---|---|
| Sep 2026 | 5,555 R$ | 1 |
| Aug 2026 | 2,500 R$ | 3 |
| Apr 2026 | 6,500 R$ | 1 |
| Aug 2025 | 2,000 R$ | 1 |
| Jun 2025 | 1,098 R$ | 3 |
| Apr 2025 | 600 R$ | 1 |
| Mar 2025 | 642 R$ | 1 |
| Jan 2025 | 300 R$ | 1 |
| Aug 2024 | 999 R$ | 1 |
| Jul 2024 | 600 R$ | 1 |
| Jun 2024 | 100 R$ | 1 |
| May 2024 | 588 R$ | 2 |
Did knife in mouth - case hardened (blue gem) make money for release buyers?
Knife in mouth - case hardened (blue gem) sold out of its original stock on its first day of sales, Jun 23, 2023. Copies could be resold from Jul 23, 2023, once Roblox's 30-day resale lock ended.
For someone who bought at the original 100 Robux, the best return per day held came from reselling about 112 days after release, when copies were selling for around 1,229 Robux. That works out to roughly 514 Robux profit per copy after Roblox's cut.
About knife in mouth - case hardened (blue gem)
the blade has been color case hardened, producing a highly desired and rare light blue texture. more ugc and knives here: https://www.roblox.com/catalog?Category=11&CreatorName=Tom_atoes&salesTypeFilter=1&IncludeNotForSale normal version: https://www.roblox.com/catalog/13783868299/
How to get knife in mouth - case hardened (blue gem)
knife in mouth - case hardened (blue gem) is no longer sold by the creator, so the way to get it is to buy a copy from a reseller on Roblox. The cheapest is listed at 6,767 Robux.
Knife in mouth - case hardened (blue gem) is Roblox asset ID 13839668079. It was published by Tom_atoes. On RBX Invest it sits in the UGC Limited Face Accessories, Limiteds under 100 Copies, Limiteds under 1,000 Copies, Limiteds under 10,000 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.