Okay so some of us didn't know what "jewel" tones were. Perhaps some of you out there aren't sure either. Well think of jewellry and the colours of gems like emerald, ruby, topaz, amethyst, sapphire, etc. Those are "jewel" tones; the colours are clear, not dulled down or greyed.
Now put those colours with black and you've got POP! I mean things just sparkle! This is the quilt that I put together with those friendship stars.
Unfortunately the picture doesn't do the quilt justice. It does sparkle more than the picture shows. I donated it to a care home and I'm told that the recipient's eyes sparkled just like the quilt.