Nature’s first green is gold,
Her hardest hue to hold.
Her early leaf’s a flower;
But only so an hour.
Then leaf subsides to leaf.
So Eden sank to grief,
So dawn goes down to day.
Nothing gold can stay.
-- Robert Frost
A gorgeous gradation of amber gold to leafy green. Evocative of its inspiration and only available for a brief moment. Once it's gone, it's gone forever. In 4mm, 6mm, and 8mm diameters.