What is Diadema Oceanicus worth on Roblox?
As of September 6, 2026, Diadema Oceanicus has a Recent Average Price (RAP) of 175 Robux and the cheapest reseller listing is 500 Robux. Across the 100 owned copies, its estimated market value is 17,500 Robux.
That puts the cheapest copy 186% 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 Oceanicus?
Diadema Oceanicus is a UGC Limited Hat with 100 total copies. it is sold out at the original price, so copies now trade only on the resale market. it originally sold for 200 Robux.
At 175 Robux, RAP sits below the 200 Robux it first sold for, so copies bought at release are currently under water.
Diadema Oceanicus has 46 favorites on the Roblox catalog.
About Diadema Oceanicus
Mare nostrum.
Where to find Diadema Oceanicus
Diadema Oceanicus is Roblox asset ID 13722133373. it was published by Sideris UGC. on RBX Invest it sits in the UGC Limited Hats, Limiteds under 1,000 Copies, Limiteds under 500 R$, Limiteds under 1,000 R$ 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.