---
title: "Diamond Protogen — Roblox UGC Limited"
description: "Diamond Protogen is a Roblox UGC Limited (Hat) by Ernestos and Tetsus Fur Corner. RAP 418 R$."
url: "https://rbxinvest.com/item/87372101693285"
type: "roblox-limited-item"
asset_id: "87372101693285"
item_type: "ugc_limited"
asset_type: "Hat"
creator: "Ernestos and Tetsus Fur Corner"
creator_id: "36064343"
rap: 418
lowest_resale_price: 449
original_price: 0
total_quantity: 249
copies_remaining: 0
sales_30d: 4
created_on: "2026-03-15"
currency: "ROBUX"
data_as_of: "September 16, 2026"
source: "RBX Invest"
---

# Diamond Protogen

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Diamond Protogen is a Roblox UGC Limited hat by Ernestos and Tetsus Fur Corner. Its original stock of 249 copies has sold out. Resale listings start at 449 R$, about 7% above its RAP of 418 R$. RBX Invest has tracked 4 sales of it in the past 30 days. It was created on Roblox on Mar 15, 2026. Ernestos and Tetsus Fur Corner is a Roblox group rather than an individual user. RAP is Recent Average Price, the Roblox-published rolling average of recent sale prices. Figures as of September 16, 2026.

| Field | Value |
| --- | --- |
| RAP | 418 R$ |
| Lowest resale | 449 R$ |
| Original price | 0 R$ |
| Total quantity | 249 |
| Original copies remaining | Sold out |
| Sales (last 30 days) | 4 |
| Created on Roblox | Mar 15, 2026 |
| Favorites | 34 |
| Item type | UGC Limited |
| Category | Hat |
| Creator | Ernestos and Tetsus Fur Corner |

## Item description

This is the description text Roblox carries for the item, quoted verbatim:

> Diamond Protogen

## Collections this item belongs to

- [UGC Limited Hats — Prices, RAP & Rarity of Every Tradable Hat](https://rbxinvest.com/collections/ugc-limited-hats) (HTML only)
- [Roblox Limiteds under 1,000 Copies — Scarce but Tradable](https://rbxinvest.com/collections/limiteds-under-1000-copies) (HTML only)
- [Roblox Limiteds under 500 Robux — Live Budget Price List](https://rbxinvest.com/collections/limiteds-under-500) (HTML only)
- [Roblox Limiteds under 1,000 Robux — Mid-Tier Price List](https://rbxinvest.com/collections/limiteds-under-1000) (HTML only)

## More Limiteds by Ernestos and Tetsus Fur Corner

- [\[PBR\] Golden Furry Kemono Wolf — RAP 252 R$](https://rbxinvest.com/item/77040179891877.md)
- [\[PBR\] Golden Furry Kemono Wolf — RAP 116 R$](https://rbxinvest.com/item/110449118100638.md)
- [\[PBR\] Golden Furry Kemono Cat — RAP 96 R$](https://rbxinvest.com/item/106919926354334.md)
- [Cute White Cat Shoulder Pal — RAP 92 R$](https://rbxinvest.com/item/134262165673632.md)
- [Golden Protogen Head — RAP 87 R$](https://rbxinvest.com/item/77098695370066.md)
- [Golden Happy Kemono \[PBR\] — RAP 65 R$](https://rbxinvest.com/item/115835972384336.md)
- [Diamond Kemono Wolf — RAP 51 R$](https://rbxinvest.com/item/85956516010112.md)
- [Huge 3D ErnestoHappy — RAP 27 R$](https://rbxinvest.com/item/80225247794036.md)
- [Bronze Happy Kemono \[PBR\] — RAP 27 R$](https://rbxinvest.com/item/83998832819551.md)
- [Silver Happy Kemono \[PBR\] — RAP 14 R$](https://rbxinvest.com/item/119938319462122.md)
- [Marks Dragon Hair  — RAP 0 R$](https://rbxinvest.com/item/77399824938592.md)
- [3D ErnestoHappy Shoulder Pal — RAP 0 R$](https://rbxinvest.com/item/126330275452501.md)

## Limiteds at a similar price

- [Red Clockwork Headphones — RAP 540 R$](https://rbxinvest.com/item/19004165841.md)
- [Lightning tophat — RAP 540 R$](https://rbxinvest.com/item/14500095499.md)
- [Frozen Blue Solaris Helm — RAP 540 R$](https://rbxinvest.com/item/109986812854777.md)
- [Purple Sky Baron — RAP 540 R$](https://rbxinvest.com/item/13490813862.md)
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- [Winged War Helmet of Dexterity — RAP 540 R$](https://rbxinvest.com/item/13183701875.md)
- [Ocean Horns of Malicious Intent — RAP 540 R$](https://rbxinvest.com/item/13877664252.md)
- [Brick's Brick Backpack — RAP 540 R$](https://rbxinvest.com/item/17293629782.md)
- [Sky Rare Sword — RAP 540 R$](https://rbxinvest.com/item/87101658368174.md)
- [Illumina'd — RAP 540 R$](https://rbxinvest.com/item/16375897428.md)
- [Rate Limit Exceeded Sign — RAP 540 R$](https://rbxinvest.com/item/13948212309.md)
- [Messor Valkyrie — RAP 540 R$](https://rbxinvest.com/item/99926022568055.md)

## Related pages

- [Ernestos and Tetsus Fur Corner — full catalog](https://rbxinvest.com/creator/36064343.md)
- [Roblox Limiteds leaderboard](https://rbxinvest.com/items.md)
- [Browse Limiteds by category, price, and rarity](https://rbxinvest.com/collections) (HTML only)

---

Source: [RBX Invest](https://rbxinvest.com/item/87372101693285) — independent Roblox Limited analytics, not affiliated with Roblox Corporation. RAP and reseller figures are read from Roblox and refreshed continuously; treat them as recent, not live.