Ultraviolet skips swirls and graphics for individual parts spray-painted in flat black and purple, a deliberately minimal scheme. The simple two-tone treatment leans clean and menacing, letting the balisong's shape and flip animation do the talking rather than the paint.
Butterfly Knife (Ultraviolet): design, wear and market
Market read
Across 26 markets the BS floor moved 0% in 18 days: $503.11 → $503.21.
Sources: Valve item data · our 26-market price snapshot.
How much does Butterfly Knife (Ultraviolet) cost?
Butterfly Knife (Ultraviolet) is listed from $503.21 on 26 marketplaces, every price with buyer fees in. Wear floors: FN $2,509.97 · MW $777.69 · FT $579.79 · WW $618.65 · BS $503.21.
Where can I sell or cash out Butterfly Knife (Ultraviolet)?
Right now DMarket pays the most: $480.17 net after its seller fee; the Sell tab holds the full ranking by take-home amount.
Does Butterfly Knife (Ultraviolet) come in StatTrak or Souvenir?
It does — StatTrak (from $503.21) listings exist too. Pick a Quality pill above to see that variant priced across the same markets.
How do I get Butterfly Knife (Ultraviolet)?
The drop source is Spectrum Case, itself listed from $3.29; the direct market price starts at $503.21. Opening containers for one specific skin rarely beats buying it outright.
Spectrum Case
Inspect a BS copy in game 
