This very special strand of beads of just lovely! They are from the 1920s era. The primary beads, in round and four-sided rectangular shapes are in jade green satin glass but drizzled with amber colored glass. The findings are silver tone. Condition on this necklace is very good although it looks like the tip of one of the two beads at the center of the necklace has a surface flake near the head pin.
The wearable length is 31 inches with a drop up to 4 5/8" as the beads gather at a center point and split into two dangles. I like to layer these with beads from this era I am listing as BC-205 or BC-206.