NARS Barbuda mono eyeshadow seems to be an discontinued shade, i have found it on allcosmeticswholesale.com, though.NARS - Eyeshadow Singles
normally NARS singles cost 24€/16.50£/23$ for 2.2g, i paid around 18$ for Barbuda.
it comes in a small sturdy signature NARS compact of rubberized plastic."Barbuda" NARS Single Eye Shadow
Barbuda is a muted purple with brown/grey tint and fine pink and white shimmer. i have seen it described as a plummy taupe but it definitely pulls purple on me. i think it looks like a darker version of MAC's Shale. it has a fine and soft texture (not firm and silky like most other NARS eyeshadows) and a good pigmentation/pay off. it's easy to blend and lasts all day on me. i think this is a good colour for a nude look (with a matte cream shade on the lid and Barbuda in the crease) or as a lid colour in a purple or brown smokey eye.




tihilw
(sorry these pics are a bit blurry and not exactly true to colour. i will update with better photos soon)
Bare Minerals True Gold on the inner corner and NARS Barbuda on the outer parts.


comparison
NARS Brousse duo - NARS Barbuda - MAC Shale - Rouge Bunny Rouge Delicate Hummingbird - MAC Satellite Dreams
NARS Brousse duo - NARS Barbuda - MAC Shale - Rouge Bunny Rouge Delicate Hummingbird - MAC Satellite Dreams
it's darker than MAC Shale and less shimmery than Rouge Bunny Rouge Delicate Hummingbird.