Herkimer Diamond Mines Map

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Herkimer Diamond Mines

Tripadvisor (330) · Mining in Herkimer, United States

4626 State Route 28, Herkimer, NY 13350

(315) 891-7355

herkimerdiamond.com

Open · Closes 5 PM

Days of week	Open hours
Tuesday	9 AM - 5 PM
Wednesday	9 AM - 5 PM
Thursday	9 AM - 5 PM
Friday	9 AM - 5 PM
Saturday	9 AM - 5 PM
Sunday	9 AM - 5 PM
Monday	9 AM - 5 PM

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Hidden in the rocks of Herkimer County, New York are one of nature’s most magnificent gemstones. The Herkimer Diamond Mines are the home to …

Reviews

Tripadvisor

4.0/5 · 329 reviews

5-star

46%

4-star

31%

3-star

2-star

12%

1-star

11%

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Nov 4, 2024

I was So disappointed in the Herkimer Diamond Mine. I planned my vacation around hunting for Herkimer Diamonds. How many did I find …, not a one! I pounded rock after rock not to find not a single … Full review by Jerry H

Oct 22, 2024

Herkimer Diamonds are exquisite gemstones, cut and faceted by Mother Nature with 18 facets and two termination points. Although widely referred to as diamonds, Herkimer Diamonds are actually quartz … Full review by Begonia3

Oct 9, 2024

This was right across the street from the campground. I was able to find one nice herkimer within the first 20 minutes while searching a large dirt pile. I found a few others in ugly rocks I kept my … Full review by Janice R

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