"Some" indication of the amount of silver your kitten will exhibit can be (sort-of) "determined" at birth. This is noted by the amount of silver on the face. The more silver on face, the lighter he/she should be as a mature cat. The darker the face, the darker your cat should be at maturity.

The photos below are all the same kitten (black/silver). The silver really shows through and we see the STRIKING & AMAZING Black/silver!

Black/Silver newborn

Strong silver face

about 4 weeks

4-6 weeks

light face showing black

6-8 wks side dark

4 months Thanks Chelsea

Gorgeous Black/Silver

6 months

Very light face

3-4 weeks

Red tipped hair

4 weeks

6-8 weeks

8-10weeks

12 weeks

Amazing FACE!!

5-6months

LOVE those ears!!

Black/Siver DAD to all my kittens	Black silver BIG DADDY
Better view of DAD's side color	DADDY as baby! I think he is about 6-8 weeks here. Notice how dark his coat is
Mom...not looking happy about the holding posture!	Nice side view of Sofia..Black/silver tortie tabbie

Both of these parents are black silver. I am amazed at the variety of colors they produce! But, almost all of their kittens will have silver.

Here is a snap shot from our black SMOKE. Very nicely shows 2 tone hairs. The pigment is only on the tips and the underside has no pigment!