Here are two very, very similar orange shades by OPI. 

OPI- A Good Mandarin Is Hard To Find (left) is from the Spring 2010 Hong Kong collection, and OPI- My Paprika Is Hotter Than Yours (right) is from the most recent Spring 2013 Euro Centrale collection.

They are both bright oranges with red undertones (many people might just consider them red-oranges). 

Are they dupes? Let's find out!




Artificial light, three coats each:



I acquired A Good Mandarin Is Hard To Find sometime last year after seeing it looking amazing on an acquaintance's nails, and it's one of my favorite oranges.  I didn't realize how similar My Paprika Is Hotter Than Yours would be when I purchased it.  (Why do these OPIs have such long names?!)

Mixed Artificial & natural window-filtered daylight:



Can you tell them apart?  I barely could in person. 

My Paprika is supposed to have shimmer, but I photographed it in all sorts of light, and it did not show up, and I still couldn't see it with my naked eye. If anything, maybe the shimmer gives My Paprika a bit of a glow even though you can't really see it?

At any rate, for comparison purposes, I'd consider these both creme finishes. Outside, shade:


I think A Good Mandarin Is Hard To Find has a less pronounced pink undertone than My Paprika Is Hotter Than Yours, but...it's so subtle.



They're both extremely vivid.

Sun:




^Above the sun is shining directly on My Paprika, and no shimmer is to be found.



Verdict: I don't think these two are exact matches, but for all intents and purposes they're dupes!  I really couldn't tell them apart, and had to keep checking the bottle labels to make sure I was painting the correct nail with the correct color.

I will have to relegate one of these shades to my Cull/ Trade list, but I'm not sure which yet.  They both took three coats for opacity, although My Paprika Is Hotter Than Yours has a formula which is a bit thicker.

I like A Good Mandarin Is Hard To Find for sentimental reasons, but I think I'm drawn slightly more to My Paprika Is Hotter Than Yours.  Ah! Decisions, decisions!  _{(First world polish problems)}