Gris Montaigne features notes of bergamot, rose, patchouli, jasmine and woody moss.
Christian Dior Gris Montaigne is currently exclusive to Harrods in the UK as part of that store's "Dior takeover". I will update with sizes and concentration when I can, but the others in the series are in in 125, 250 or 450 ml.
Update ~ the description from the Dior website:
And if grey were a perfume?
The olfactory signature of the Couture House’s legendary location, 30, Avenue Montaigne, has become a reality. The perfumer’s response to couture, this sophisticated chypre fragrance is a bold interpretation of the Dior Grey. The Couture Grey featured in the collections since 1947, the Grey Emotion of Christian Dior’s family home in Granville, Pearl Grey like the facade of the boutique on Avenue Montaigne.
Colour becomes a perfume: a burst of citrus, a floral heart of Turkish Rose and Jasmine Sambac from the Indian region of Tamil Nadu, followed by a woody note heightened with Indonesian Patchouli set against an ambery backdrop of moss.
Gris Montaigne is available in 125, 250 or 450 ml.