How much is Diadema Argentum worth? Price and value
As of October 18, 2026, Diadema Argentum is worth about 785 Robux, its Recent Average Price (RAP), and the cheapest copy for sale is priced at 9,999,999,111 Robux. Across the 11 owned copies, its estimated market value is 8,635 Robux.
That puts the cheapest copy 1273885137% 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 Diadema Argentum?
Diadema Argentum is a UGC Limited Hat with 11 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for 600 Robux.
At 785 Robux, RAP sits 1.3x the 600 Robux it first sold for.
Diadema Argentum has 31 favorites on the Roblox catalog.
Diadema Argentum sales history
RBX Invest has recorded 19 sales of Diadema Argentum across 9 trading days, from Jul 6, 2023 to Sep 30, 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 30, 2023, and its lowest was 600 Robux on Jul 6, 2023.
By calendar year, its average sale price went from 785 Robux in 2023 to 403 Robux in 2026, down 49%.
| Month | Average sale price | Sales |
|---|---|---|
| Sep 2026 | 105 R$ | 1 |
| Apr 2026 | 700 R$ | 1 |
| Sep 2025 | 1,500 R$ | 1 |
| Oct 2024 | 808 R$ | 1 |
| May 2024 | 600 R$ | 1 |
| Nov 2023 | 1,388 R$ | 1 |
| Oct 2023 | 1,499 R$ | 1 |
| Aug 2023 | 1,500 R$ | 1 |
| Jul 2023 | 600 R$ | 11 |
Did Diadema Argentum make money for release buyers?
Diadema Argentum sold out of its original stock on its first day of sales, Jul 6, 2023. Copies could be resold from Aug 5, 2023, once Roblox's 30-day resale lock ended.
For someone who bought at the original 600 Robux, the best return per day held came from reselling about 55 days after release, when copies were selling for around 1,500 Robux. That works out to roughly 150 Robux profit per copy after Roblox's cut.
About Diadema Argentum
Argentum aeternum est.
How to get Diadema Argentum
Diadema Argentum 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 9,999,999,111 Robux.
Diadema Argentum is Roblox asset ID 13978267988. It was published by Sideris UGC. On RBX Invest it sits in the UGC Limited Hats, Limiteds under 100 Copies, Limiteds under 1,000 Copies, Sold-Out UGC Limiteds 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.