Karambit Ruby: The Complete 2026 Guide to CS2’s Red Gem Knife
- ▸Karambit Ruby is the rarest Doppler phase, with only 1 in 10 Doppler knives rolling Ruby
- ▸Factory New prices start around $2,800 and can exceed $12,000 for 0.00x float
- ▸CSBoard lists live Ruby inventory at /en/items/karambit-doppler?phase=Ruby
- ▸CSBoard charges 0% for deposits and direct item-for-item exchanges without money. P2P marketplace sales carry a 2% selling fee. Instant sell is a separate buyout offer; check its quote and the chosen payout method’s fees and timing before confirming.
The Ruby phase first appeared in the Spectrum Case (2017) and has never been re-released in a new case, making every Karambit Ruby a finite collectible from original unboxings.
Top 5 Most Valuable Karambit Ruby Floats (Recent Sales)
- 1
0.0004 Float (Factory New)
The lowest float recorded on public markets; sold on CSBoard in February 2026.
$12,200 - 2
0.0009 Float (Factory New)
Near-perfect red blade with zero corner wear; one of three known under 0.001.
$8,900 - 3
0.0031 Float (Factory New)
Clean playside, minimal scratch on backside; typical for top-tier FN specimens.
$6,500 - 4
0.010 Float (Minimal Wear)
Lowest Minimal Wear float available; indistinguishable from FN when inspected.
$4,200 - 5
0.024 Float (Minimal Wear)
Strong liquidity at this price point; multiple trades finalized on CSBoard in the last 30 days.
$3,750
Karambit Ruby vs. Sapphire vs. Black Pearl
| Phase | Relative Rarity | FN Price Floor | Demand Trend (2026) |
|---|---|---|---|
| Ruby | 1 in 10 Doppler | $2,800 | ↑ 22% YoY — highest demand among gem knives |
| Sapphire | 1 in 10 Doppler | $3,200 | ↑ 18% YoY — blue gem prestige |
| Black Pearl | 1 in 20 Doppler | $2,400 | ↑ 12% YoY — niche collector base |
Live Karambit Ruby Listings on CSBoard
Always verify the Ruby phase in the inspect screen — P2 phases (pink) can look similar in certain lighting and are often mislisted as Ruby. On CSBoard, all listings are manually verified before appearing in search results.
Frequently Asked Questions
Browse Karambit Ruby Listings Now
CSBoard charges 0% for deposits and direct item-for-item exchanges without money. P2P marketplace sales carry a 2% selling fee. Instant sell is a separate buyout offer; check its quote and the chosen payout method’s fees and timing before confirming.
View Karambit Ruby →Live prices
Current market prices for the skins in this guide — updated continuously.
