We call these our Monet Hearts because of their resemblance to impressionist paintings.  They have a very organic look to them.  They are about 1 1/2 inches tall and 1 inch across at their widest.  They hang from a clear glass loop solidly attached to the body of the heart.   The hole in the loop is approximately 1/6 inch (4 mm) wide, so it can accommodate a wide variety of necklaces.

Glass Heart Pendants - $25

The Dichroic Hearts are identical to the Monets except...dichro!  The dicho on all three styles is backed by a bright ruby red.  The Electric Blue piece shows flashes of bright blue against the ruby backing.  The Lavender Heart is a soft pink/purple color which is more opaque than the dichro on the Electric Blue.  The dichro on the Red Heart shows colors ranging from red to copper depending on the viewing angle.  These are my wife's favorite hearts and they gets numerous compliments from people she meets.