The In Too Deep event just gone airing and so far, we've seen most of the gems blush.
Garnet's blush color is purplish (I don't know, so far, we've never seen her blush in daylight, we've only seen her blushing at night, so her true blush color is unknown at this point, because of the lighting, but, by the the looks of it, it's a purplish color).
Pearl's blush color is cyan.
Amethyst's blush color is purple.
Ruby's blush color is red (like us).
Sapphire's blush color is blue.
As for Peridot, we haven't seen her blush until Catch and Release.
But, it's always been hidden by her visor, so, her true blush color remained unknown (since her visor tints everything green), that is, until Log Date 7 15 2 when she blushed at the end of the episode, the blush went outside the visor area, thus revealing her true blush color.
Peridot's blush color is teal (to me, her blush color is greenish-blue, almost teal, I guess is supposed to be based off the most valued color of Peridot, dark green or grass green).
And as for Lapis, we haven't seen her blush until Same Old World.
In this episode, Lapis, like how they do with Garnet whenever she blushes, blushed at night, but, unlike Garnet, her blush color wasn't unknown due to the lighting, we can clearly see that it's blue.
But, in the next episode, Barn Mates, Lapis blushed again, but, this time in daylight, thus determining what we've seen in Same Old World is her true blush color and it is....
Lapis' blush color is blue (boy, was I wrong, I predicted that it would be gold, referencing the pyrite in real world lapis lazulis, but, at first, I predicted blue until I learned about the pyrite present in real world lapis lazulis and saw some fanart of Lapis blushing yellow, I then changed my prediction to gold, but, it looks like three people, counting me were wrong, I've seen many fanart of Lapis blushing blue, so it looks like the population is right).
The only gems we haven't blush yet are Jasper, Yellow Diamond (I think we'll see her blush), Blue Diamond (I don't think we'll see her blush), Yellow Pearl (I don't think we'll see her blush), and Blue Pearl (I don't think we'll see her blush).
As for Rose Quartz, I thought I saw her blush in Story for Steven and We Need to Talk, but, I guess she didn't since I've found 0 screenshots of her blushing and I looked at gifs of the scenes that I thought I saw her blush and I didn't see her blush, I guess she hasn't blushed yet.
I wonder what their blush colors are gonna be.
It's fun predicting blush colors, so, here's my predictions.
Jasper- Red or Burnt Orange or Dark Orange. (I think her blush color will be red or burnt orange or dark orange because, it goes with her skin color well)
Blue Diamond- Blue. (It's pretty obvious, because, it goes with her skin color)
Yellow Diamond- Dark Yellow or Olive. (it's pretty obvious because, it goes with her skin color)
Yellow Pearl- Dark Yellow or Gold. (It's pretty obvious because, it goes with her skin color)
Blue Pearl- Gray-blue. (it's pretty obivous because, it goes with her skin color)
What do you think their blush colors will be?