A beautiful soft metallic peachy colour that is quite unique. Like the previous reviewer, I am also very pale and cool toned and this looks really pretty on me. Great for summer. However I do wish it was more opaque so not as many coats were needed.

Zoya describes this as a frosty light orange coral and that is the perfect description of Calypso! As the previous comment mentioned, it is relatively sheer but not ridiculously so. I use three coats for full opacity, though if you have short nails or do not mind a slight VNL you could get away with two.
I hesitated to purchase Calypso at first - I have very fair, cool-toned skin (think Irish :D), and the Zoya website specifically mentioned it was best for "Warm" tones. I love that Zoya assigns skin tones to their polishes to give people at least an idea - most companies don't do that. I usually trust in their judgment, but Calypso looked so gorgeous I ordered the "warm" color anyway. I am so glad I did - it is the perfect coral for my fair skin! On me, it is exactly as Zoya describes - barest hint of pink (just enough to make it coral, not flat out orange), mostly light coral orange that works surprisingly well for my skin tone.
Edit: Calypso's bottle color and swatch color on Zoya's website isn't quite true to color. Both of them look more pink than Calypso actually does. I just added a bottle photo so you can see the difference.

Zoya's website describes Calypso as "Bright yet soft looking light orange-coral with smooth, frosty metallic shimmer. A delicate orange that can be worn as a nearly-nude sheer." It may have something to do with my skintone (which is warm and very pale), but I found this polish to be more pink than peach. I would describe it as a peachy-pink color, light but not pale, and too bright / not enough beige to be considered a nude on any skintone. It looks brighter and more pink on my nails than it does on the website. (The swatch pic is a little more accurate than the bottle pic since it looks brighter, but I still think the actual color is more pink than the swatch.) Zoya gives it a 3 out of 5 on their opacity scale and I'd say that's about right -- I used two coats, and while the color is nice and even, you can still see the whites of my nails through the polish at certain angles. At other angles, the shimmer hides this and it looks more opaque. It's a pretty color, but the unexpected pink tones make it feel more "girly" than I wanted, and it's a bit sheer so it's not my favorite.