If you scroll to the bottom of the blog post that you linked, the creator of the card has a link to all of her supplies, including the Sizzix folder. Hope that helps you find your folder...
It's called: *Sizzix BLOSSOM CIRCLES LEAVES & DIAMONDS Embossing Folders Textured Impressions 657394
Heather :)...... My Gallery
“You cannot do a kindness too soon, for you never know how soon it will be too late." Ralph Waldo Emerson
Founding Member of the Punchkateerz - "You don't have to be crazy to be one of us, but it sure helps."