Not actually diamonds. But they fool the eye. Formed 500 million years ago in New York State, with facets that nature cut on its own.
First documented by European settlers in the late 1700s near Herkimer County, New York, though the Mohawk people had long known and used them.
Formed 500 million years ago in dolostone cavities, each crystal grew slowly in mineral-rich water, developing its double-pointed form entirely without human help.
By the 1800s they were prized as gemstones and collected widely. Soldiers in the Civil War carried them as good-luck talismans.
What makes a Herkimer Diamond remarkable is that nature does the work a gem cutter usually does: both ends taper to a natural point, with up to 18 facets developing entirely on their own. Water-clear, brilliant, and with a sparkle that stops people mid-sentence.
They form in pockets inside dolostone rock in Herkimer County, New York. The stone around them is dissolved away or cracked open to reveal the crystal inside, sometimes after half a billion years of waiting. Each one is unique in size, clarity, and form.
Some contain fluid inclusions: a tiny bubble of ancient water, sealed inside when the crystal first formed. Holding one of those is holding something that hasn't been touched since before there were fish.
We carry a rotating selection: singles for everyday wear, larger specimens for display, and the occasional extraordinary piece. Come see what's in.