15th Century Italian Necklace

Allegory of April: Triumph of Venus
Click on images for larger view
The necklaces
are made of dark or red glass or ceramic beads forming triangles whose
corners are larger pearls. There is a golden tint near the pearls in
some of the illustrations.
For materials, I chose simple, dark red glass beads readily
available commercially as a close match to the period beads. Lacking
true pearls, I further settled for faux-pearls, also a modern bead,
but hoping to achieve the same effect.
I started experimenting with thin wire, thinking that in
order to hold the triangle shape, an underlying stiffness was required.
I soon learned that wire simply wouldn't work well in beads the size
shown in the painting so I changed to linen thread.
After studying
the illustrations and much experimentation, I finally settled on four
red beads per triangle side. The thread was too exposed at the pearl
points where the red beads rubbed the pearls at a high angle. I then
decided to use the hint of gold near the pearls in the painting to justify
the use of small gold tone metal beads on either side of the pearls
to act as a buffer to ease the angle and cover the exposed thread.
Several
attempts later, I discovered that the pattern can actually be made very
easily using a double strand of threads and that with some tightening
at the end it will hold the triangle pattern very well.
Resources.
COSSA, Francesco
Allegory of April: Triumph of Venus. 1476-84
Fresco. Palazzo Schifanoia, Ferrara, Italy