Placemat has crossed double crochet stitches and border all around of (dc-ch1)x3 alternating with (dc-ch5). Coasters are octagonal.

Pattern 18 in Magic Crochet.
Pattern 6, Individual y Posavasos a Juego, in Ganchillo Artistico.
Pattern 3 in Haekling #16, Daekkeserviet og glasflakon.
Patter 3, Luster, in Crochet Monthly 310.

There are (at least) two different pictures. The Magic Crochet picture has amber glass plate and drinking glass, and a carafe of sparkling wine.

The newer Ganchillo Artistico photo has spilled pink bath beads, as does the newer Crochet Monthly.