Born Pretty - Holo Polish - Chameleon Blue

This is not a holographic polish. 
Yes it shifts between blue, purple, and gold, but it is not holographic.
It looks really pretty over a black base coat.

Two coats and the bottom strip is one coat over black polish.
Photos don't so it justice.

Price: 3/5 ($6.70 for 6mL)
New Name: Cobaltinus (After 'Chrysochus cobaltinus')
Effectiveness: 2/5 

Avon - Opal - Top Coat

This is a clear polish with colour-shifting clear glitter of various sizes.

One coat, it is hard to capture the true beauty of this polish on camera.

It is super cute.

Price: 1/5 ($14.99 for 12mL)
New Name: *'Opal' is perfect
Effectiveness: 5/5

Essie - Nail Lacquer - On a Silver Platter

This is a clear nail polish with fine gold glitter specks, large and medium blue-holographic glitter, and a slight blue shifting property.

Two coats.

This is such a unique, pretty nail polish. 
As a result, it is the ONLY Essie polish I have purchased directly (the rest were from my Bellabox subscription).

Price: 1/5 ($16.95 for 13.5mL)
New Name: Nefertiti
Effectiveness: 5/5