Parts III to V (Fringing, Ruffling, and Strap)
Part III-Fringing
The basic constuction is completed now. What
remains is Fringing, Ruffling, and Strapping. I used pink Nymo D for
fringing here. You can only use Nymo D here if you used O for the
weaving otherwise use B or O. "Assem 8" shows the fringe being added
to the central bead of the square stitch on the side.
I anchor it the same way that peyote fringe is anchored: go through the anchor bead, string on the fringe beads, return through the fringe beads to the top, then enter the anchor bead at the opposite end so that you go through it again. You then thread through the square stitch.
Part IV-Ruffling
Photo "Assem 10" shows the ruffle being started
on the open edge of the heart.
It is somewhat easier to tie on and start here.
Drawing "4-Bead pickup" shows the first two cycles of the ruffle.
When you first emerge through a bead, the first cycle has five beads in it, but subsequent ones have four. This is an edging stitch sometimes called "fretting". Horace Goodhue covers in his book Indian Bead-Weaving Patterns , 1989 edition, p68. Peggy Sue Henry also show the 2-bead pickup version of this stitch in her Beads to Buckskins series (Vol 2, p45). The 2-beadpickup version of this stitch gives a nice flat edge that protects the end threads on loomwork or square stitch, but the 4-bead pickup version looks like a ruffle from the the steric crowding of the beaded loops. This drawing shows how the ruffle is really a series of edging loops that you loop on as in brick stitch onto edge of the brick stitch or onto the thread showing from the return on the square stitch sides.
The Drawing "4-Bead Pickup" tries to show how
the crowding of the loops gives the ruffly effect. Photo "Assem
11"tries to shows how in completing the ruffle you have to hold the
fringe back to avoid tangling and also to see the threads you need to
loop on to.
You insert your first finger inside the heart, place your thumb on the face of the heart and use your second finger to hold back the fringe. Photo "Assem 12" shows the completed ruffle.
Part V-The Strap
Drawings "Strap options" shows 4 options for
the strap addition depending on your preferences. 
Option4 is an additional 7 rows of square
stitch which is then square stitched back to the body in order to
form a loop for strap attachment.
"Assem 13" shows the finished amulet locket using option 1 to attach the strap.
See the pink and the green tube bead with the dichroic stringers wrapped around them? They are what Carol Fonda and Monty Clark call Bamboo beads. You can see them in other colors and order them at the Perpetual Bead Show: