Recently I just purchased my first 2 bottles of CND effect polish. These polish are clear by themselves but they contained lots of amazing sparkles!
Here's the swatches for CND Sapphire & Crimson over China Glaze Liquid Leather:
CND Sapphire is a clear polish with packed with sparkling duo-chrome flakes! You can see from the above swatch that blue and purple duo-chrome effect. Very pretty!
CND Crimson contained red and golden pink duo-chrome flakes. It made my nails look as if they were on fire.
On my thumb, I layered both polish together. They look much more pretty in real!
I am so tempted to get more of these effect polish as they would be great to mix with others to get unique effect.