The base blue color has a beautiful teal tint to it that is more visible on the nails than in the bottle. The duochrome in the shimmers isn't very strong, but you can definitely see the blue/purple shift around the edges of the nail. The formula is smooth and easy to apply, though more sheer than usual. It takes a while to build up to opacity. What you see in the swatches is three coats, and there are still some visible nail lines at that.
You can find Jillian's Jammin' on Barielle.com for $8 for 0.45 fl oz, though there is an ongoing sale for buy one get one 50% off; or as part of the Carnival Fiesta kit of five polishes for $25.
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