2021 Illusions King of Cards Insert Parallels

[SportCardFactry]

I'm trying to complete the rainbow of a specific player for this insert. The checklist mentions:

Emerald, Mosaic, Orange, Rainbow, Sapphire, Sparkle, Stardust, Pink #/399, Light Blue #/299, Red #/149, Black #/50, Gold #/25, Green #/10, Purple 1/1

Obviously the numbered cards are easily distinguishable with the boarder color and serial on the back. Far as the non-numbered cards specifically (Mosaic, Rainbow, Sparkle & Stardust) I have a hard time distinguishing any difference when reviewing cards. I this something that's noticeable within foil design on the middle of the card or do these specific parallels simply do not exist?

[growdoe]

Based on Cardboard Connection, those other parallels are not listed as King of Cards parallels

[SportCardFactry]

Based on Cardboard Connection, those other parallels are not listed as King of Cards parallels

According to my cardboard connection site they are (see attached)

Like mentioned I can see the the emerald and orange in listings but unsure about the others

[RustyDawg37]

This is my biggest gripe right now. I should be able to identify exactly what the parallel is without polling a website.

[growdoe]

According to my cardboard connection site they are (see attached)

Like mentioned I can see the the emerald and orange in listings but unsure about the others

I referenced same page, but focused on the summary portion above which gives impression those parallels (Mosaic, Rainbow, Stardust, Sparkle) do not exist for that insert. I haven't seen any on ebay, and I have been researching and buying them for past 5 weeks.

[RustyDawg37]

looks like all hobby parallels are serial numbered, so you just have to nail down which ones actually come in retail. They may just be very hard to pull from something.