Huge Firefly
546M diamondsExclusive#611 most valuable626 exist
Huge Firefly is currently valued at 546M diamonds in Pet Simulator 99, making it the #611 most valuable tracked item. It is an Exclusive item. Values reflect trader consensus as of 1 November 2026. Before you accept any offer for Huge Firefly, run both sides through the WFL calculator. A fair trade lands within about 10% of even.
Huge Firefly value by variant
Recent average price for each version, with how many copies exist. Rarer variants trade well above the normal pet:
| Variant | Value | Exist |
|---|---|---|
| Normal | 546M diamonds | 626 |
| Golden | 722M diamonds | 131 |
| Rainbow | 7.02B diamonds | 25 |
| Shiny | 25.7B diamonds | 11 |
| Shiny Golden | Too few sales | 1 |
| Shiny Rainbow | Too few sales | 1 |
Fair trades for Huge Firefly
Items worth about the same, one-for-one swaps with these are close to fair:
| Item | Value | Rarity | Demand |
|---|---|---|---|
 Huge Jelly Axolotl | 627M diamonds | Exclusive | – |
 Huge Pumpkin Cat | 626M diamonds | Exclusive | – |
 Huge Lucki Agony | 617M diamonds | Exclusive | – |
 Huge Amethyst Dragon | 616M diamonds | Exclusive | – |
 Huge Grinch Cat | 614M diamonds | Exclusive | – |
 Huge Hacked Cat | 609M diamonds | Exclusive | – |