Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
This variety actually contains a mix of different styles. The green and light purple marbles get their color from transparent cores cased in crystal clear. The blue marbles are actually blue through and through. The blue and purple marbles have blue 5-petaled flowers interspersed with green leaves above a field of white lines, but below the surface of the marble. There is a bubble as the center of each flower, and the petals curl down at the center. The green marbles have gold flowers on the surface of the sphere, and the white lines beneath form a looping pattern.