Blue gem checker

Navaja Knife | Case Hardened

Blue, purple and gold share for all 1,001 seeds, on the play side and back side. Skin page and prices →

Pattern seed

Play side blue95.0%Tier 1

Purple: 0.2%
Gold: 1.1%
Back side blue: 71.9%

Inspect seed 398 in game

Cheapest listed top-10 seedChecking listings…

Seed 398, both sides: drag or let it rotate

3D preview: provider and limitations

Clicking 3D connects to cs2inspect.skin and shares your IP address, site origin and the skin, float and pattern shown here, not your Steam account or inventory. Models can use several MB. No 3D connection is made before you click.

Browser render, not CS2: lighting and wear can differ slightly. The pattern seed places the pattern as in game; check in game before you buy.

cs2inspect.skin

What a seed needs to rank among this skin's best, and what a copy costs.

Top 1% from: 89.4%
Top 10% from: 69.5%
Median: 27.6%
Lowest price: $68.34

How these numbers work

All values are the blue share on the play side, from the same per-seed data as the checker. Top 1% from is the 10th best of the 1001 seeds and Top 10% from the 100th best: a seed at or above it is in that group. The median is the middle seed.

Lowest price is the cheapest copy we track in any exterior and any seed (Skinport, as of Nov 4, 2026); a good seed costs more. The top-10 row looks for this skin's ten best seeds on sale once a day.

Best blue seeds

#	Seed	Play side blue	Back side	Purple	Gold	Tier	In game
1	398	95.0%	71.9%	0.2%	1.1%	Tier 1	Inspect
2	838	93.0%	95.7%	1.4%	2.5%	Tier 1	Inspect
3	407	92.6%	30.9%	0.3%	3.3%	Tier 1	Inspect
4	371	92.4%	87.6%	0.5%	3.7%	Tier 1	Inspect
5	638	92.2%	86.4%	0.5%	3.6%	Tier 1	Inspect
6	913	91.8%	66.1%	1.5%	2.6%	Tier 1	Inspect
7	839	90.4%	48.6%	1.1%	4.4%	Tier 1	Inspect
8	713	89.7%	40.8%	2.4%	3.6%	Tier 2	Inspect
9	515	89.5%	53.2%	3.1%	3.5%	Tier 2	Inspect
10	332	89.4%	51.6%	4.1%	3.2%	Tier 2	Inspect
11	720	89.2%	26.1%	3.5%	3.9%	Tier 2	Inspect
12	420	89.1%	22.7%	3.4%	3.2%	Tier 2	Inspect
13	182	88.8%	65.4%	0.9%	6.8%	Tier 2	Inspect
14	965	88.8%	49.1%	3.6%	3.1%	Tier 2	Inspect
15	928	88.1%	60.6%	0.9%	6.6%	Tier 2	Inspect
16	975	87.9%	49.3%	5.1%	2.9%	Tier 2	Inspect
17	749	87.2%	87.4%	1.0%	6.9%	Tier 2	Inspect
18	322	87.1%	36.5%	5.2%	2.7%	Tier 2	Inspect
19	396	86.7%	65.8%	4.8%	2.8%	Tier 2	Inspect
20	877	86.6%	49.9%	4.3%	4.7%	Tier 2	Inspect
21	282	85.2%	65.2%	3.8%	6.4%	Tier 2	Inspect
22	74	84.5%	35.9%	1.4%	7.7%	Tier 2	Inspect
23	401	83.6%	53.1%	2.3%	8.4%	Tier 2	Inspect
24	92	83.5%	55.5%	6.8%	6.0%	Tier 2	Inspect
25	919	83.2%	57.8%	0.3%	11.9%	Tier 2	Inspect
26	273	81.9%	51.7%	3.0%	9.6%	Tier 2	Inspect
27	917	81.7%	87.7%	0.7%	10.7%	Tier 2	Inspect
28	974	81.7%	42.7%	8.3%	6.5%	Tier 2	Inspect
29	424	81.6%	39.8%	2.1%	11.8%	Tier 2	Inspect
30	194	81.3%	74.0%	7.9%	6.1%	Tier 2	Inspect
31	811	81.1%	64.2%	5.3%	10.1%	Tier 2	Inspect
32	773	81.0%	12.8%	5.5%	8.8%	Tier 2	Inspect
33	727	80.6%	40.6%	9.0%	6.8%	Tier 2	Inspect
34	283	80.3%	93.1%	3.5%	9.8%	Tier 2	Inspect
35	891	80.3%	85.9%	0.9%	12.2%	Tier 2	Inspect
36	694	80.2%	79.2%	7.8%	6.5%	Tier 2	Inspect
37	797	80.2%	37.7%	2.3%	12.8%	Tier 2	Inspect
38	335	78.4%	74.8%	2.4%	13.3%	Tier 3	Inspect
39	793	78.4%	40.0%	3.9%	9.9%	Tier 3	Inspect
40	30	78.1%	43.5%	4.1%	10.9%	Tier 3	Inspect
41	936	78.1%	7.2%	8.6%	7.9%	Tier 3	Inspect
42	362	77.7%	33.1%	5.0%	11.4%	Tier 3	Inspect
43	885	77.5%	73.0%	11.4%	6.8%	Tier 3	Inspect
44	808	77.4%	83.1%	5.3%	12.6%	Tier 3	Inspect
45	453	77.3%	56.7%	2.3%	14.6%	Tier 3	Inspect
46	460	77.2%	60.7%	5.3%	13.4%	Tier 3	Inspect
47	664	77.1%	68.1%	6.3%	8.3%	Tier 3	Inspect
48	256	76.9%	57.6%	3.5%	13.1%	Tier 3	Inspect
49	494	76.9%	93.7%	3.4%	10.8%	Tier 3	Inspect
50	598	76.4%	54.0%	0.3%	17.2%	Tier 3	Inspect

About Navaja Knife | Case Hardened patterns

The Case Hardened texture mixes blue, purple and gold, and the paint seed decides which part lands on the Navaja Knife. Measured on the play side, 7 of the 1,001 seeds are Tier 1 (90% blue or more), 30 are Tier 2 (80-90%) and 57 are Tier 3 (70-80%); everything else is a regular pattern.

The seed is printed on the item in game and on every marketplace listing, so a pattern can be checked before buying: paste the inspect link above, or type the seed into the checker.

FAQ

What is the best Navaja Knife | Case Hardened blue gem seed?

Seed 398 has the most blue on the play side, 95.0%. 7 of the 1,001 seeds reach 90% blue and count as Tier 1.

Which side of the Navaja Knife counts?

The play side, the side facing you in game. The back side is measured too and shown next to it, since some seeds are blue on one side and gold on the other.

How do I check a Navaja Knife | Case Hardened seed in CS2?

Type the seed into the checker or pick one from the table, then press Inspect: Steam opens Counter-Strike 2 with that exact seed on the skin, no item needed. The listings button finds that seed for sale on DMarket or CSFloat.

Does the float change the pattern?

No. The seed fixes where the texture sits and the float only adds wear on top, so the seed looks the same at any float. Scratches can hide colour on a worn copy, which is why pattern buyers usually want a low float too.

Pattern data: csgo-fade-percentage-calculator and csgo-blue-gem-calculator by chescos (MIT).

Navaja Knife | Case Hardened

Best blue seeds

About Navaja Knife | Case Hardened patterns

See also

FAQ