★ StatTrak™ Skeleton Knife | Doppler Sapphire (Factory New)
Phases
Marketplace distribution
Marketplaces: 13 Offers: 67
Other
Offers: 8
11.9%
Liquidity
Estimated from sales and current active offers.
High
Price statistics
7 days
1 month
3 months
1 year
Price history
Minimum, average, median, and maximum across marketplaces.
Inspect Skin
About the item
Description
“StatTrak™ Skeleton Knife | Doppler Sapphire” stands out through an open metal construction and a large finger hole. The finish looks different on narrow connecting sections and the broader blade face. Open areas are part of the Skeleton Knife’s shape, not missing paint.
The Sapphire finish gives this model deep, saturated blue with lighter reflections and darker transitions. Its overall impression is more unified than the blue-and-dark bands of numbered Doppler artwork. Lighting adds depth to the same blue surface.
History
With Doppler, the Skeleton Knife gained new artwork on its metal surface while keeping the hole and open construction. This release is separate from the model’s original introduction. Its handling animations remain part of the familiar knife.
Sapphire is a named Doppler variant alongside Ruby and Black Pearl, not a continuation of the numbered phases. On this model, the name separates the sapphire artwork from other blue-looking Doppler examples before condition is compared.
StatTrak™ Skeleton Knife | Doppler Sapphire appeared in the game on Mar 31, 2025.
Rarity
This Skeleton Knife is among the rare special items in its case. The opening in its construction is not a defect or a separate rare variant. The skin’s quality and selected colour artwork are determined independently.
A very blue Phase 4 does not become Sapphire. This item has its own intended blue finish. The gemstone name identifies the variant rather than replacing assigned skin quality or guaranteeing a particular market value.
Rarity: Covert.
Characteristics
Inspect the Skeleton Knife’s blade face, narrow connecting sections and finger-hole edges. Their different widths produce different highlights. Judging the whole artwork from one broad area is insufficient.
Look at the depth of blue across the actual faces and edges of the model. A bright highlight can exaggerate its lightness, while a shadow makes a clean section look dark. Multiple angles reveal the stable artwork between reflections.
Recognition
The Skeleton Knife is recognizable by its open metal outline and finger hole. Its narrow sections change angle to the light quickly in motion. The finish emphasizes this light geometry rather than a substantial, solid handle.
The cohesive blue appearance makes Sapphire distinct from pink or green-accented Doppler designs. Compare it with Phase 4 in larger views: a small thumbnail can conceal dark bands and make different variants look deceptively similar.
Availability
In Skeleton Knife listings, inspect the whole open construction. A bright blade centre can distract from narrow sections and hole edges. Compare the same phase, condition and edition of this model.
An image of a blue item beside the word Doppler may still be Phase 4. Confirm Sapphire before comparing this model’s condition and edition. Close views without excessive glare reveal the edges and surface details useful for that comparison.
Origin
The Skeleton Knife’s Doppler artwork belongs to the Fever Case knife selection. Its open shape is part of the model, not cut from another knife. Trading preserves both the construction and finish variant.
The sapphire effect is a coating on metal, not an item made from stone. It is not obtained by treating Phase 4 after receiving it. Trading preserves this Sapphire artwork rather than converting it into another named variant.
The item can be obtained from these containers: Fever Case.
Versions
The standard Skeleton Knife and StatTrak edition have the same open construction and finger hole. The counter does not alter connecting sections or artwork. Condition describes the metal surfaces and is separate from the phase.
Consider preservation independently of how brightly blue appears in the image. A highlight can hide small surface details. The available editions retain Sapphire, and a cleaner condition does not transform a numbered phase into this finish.
Available conditions: Factory New, Minimal Wear.