Hi, K! I have the L'Occitane Amber Parfum Extract and this is really nothing like M7 (to my nose). My extract is a very rich, sweet, musky, vanilla-y amber. It actually reminds me somewhat of Must de Cartier parfum and even the eau de toilette to some degree. It's hard to say what someone else might like, but Must de Cartier is similar, I think, and one you would be able to sample well before Christmas, to see what YOU think.
Others to think about, though not as similar in my opinion, but absolutely gorgeous, are L'Artisan Amber Extreme, Serge Lutens Ambre Sultan, and Molinard Les Senteurs Ambre.
Hove, I am told, makes a wonderful Antique Amber or Amber Antique. And another very ambery fragrance to consider is Anne Pliska. MPG Ambre Precieux is stunning, but I don't find it that similar to the L'Occitane amber extract. Calypso Ambre is also gorgeous.
I'm sure there are others, but these come to mind immediately. Good luck!