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Ace Of Diamonds Mine

84 Herkimer St, Herkimer, NY 13406-2713
+1 315-891-3855
Review Highlights
Always find Herkimer Diamonds here.

Found the best Herkimer Diamond yet this trip at the Ace of Diamonds. I usually come to this mine... read more

Reviewed 9 May 2016
Provincetown, Massachusetts
Work, Work, Work

Lots of fun, hammering at rocks all day. 8 hours of mining and at the last hour we found a small... read more

Reviewed 24 March 2016
Read all 114 reviews
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  • Excellent54%
  • Very good32%
  • Average7%
  • Poor1%
  • Terrible6%
Travellers talk about
“sledge hammer” (12 reviews)
“rock pile” (3 reviews)
“small stones” (2 reviews)
84 Herkimer St, Herkimer, NY 13406-2713
+1 315-891-3855
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JPMiles / Payback Arrow
JPMiles / Payback Arrow
Reviews (114)
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31 - 40 of 114 reviews

Reviewed 9 May 2016

Found the best Herkimer Diamond yet this trip at the Ace of Diamonds. I usually come to this mine once a year. User friendly and very accommodating. Regularly provides new material to search. My favorite.

Thank hypomule
Reviewed 24 March 2016

Lots of fun, hammering at rocks all day. 8 hours of mining and at the last hour we found a small herkimer about the size of a small strawberry. Bring lots of water and a good pair of gloves.

1  Thank LovePranaYoga
Reviewed 3 January 2016 via mobile

My fam stopped here en route to Massachucettes. It was lots of fun! The staff were very nice and provided tips on finding diamonds. There is also beautiful scenery in the surrounding area. Pricing was good and fair, equipment available to rent. Spent a few...More

1  Thank Sarah H
Reviewed 22 October 2015

Soo much fun. I went for the first time back in May 2015, and thought it was soo much fun, my boyfriend and i went back again in October. You need a hammer and own equipment, and it was my first time mining, so to...More

2  Thank Tia M
Reviewed 18 October 2015

Did you ever picture yourself hammering away on a rock pile and enjoying it? Well you will here, no matter your age. The three of us (all adults) picked up mallets and picks at reception (for which there is small additional charge which you can...More

1  Thank JoelBx
Reviewed 15 October 2015

We camped right there at the mine! The clanging of the sledgehammers on rock is music to your ears and rings through the air from 9 am - 5 pm. The owners and staff are very helpful and friendly and if you listen to their...More

3  Thank Hollie W
Reviewed 6 October 2015

We spent the entire day prior to this visit up the street at the KOA Herkimer mine and had extremely limited luck. Based on reviews, we decided to spend our next half day of our trip at Ace instead of returning to KOA. We are...More

8  Thank Beachbrat11
Reviewed 20 September 2015

While this look like a blast, smashing rocks, finding quartz crystals and there is something to be said about finding them yourself. I have done my fair share of rock and crystal mining and opted to by some samples from the gift shop. I know,...More

2  Thank TryppAdams
Reviewed 17 September 2015

The Ace of Diamonds Mine is like the "meat and potatoes" of places to search for Herkimer Diamonds. It is not fancy, but has the goods. They offer supplies to rent (cheap) such as hammers, screens, and chisels. They refresh the stock piled mining area...More

4  Thank itsroey
Reviewed 9 September 2015 via mobile

What a cool place to stop. Be sure you're dressed comfortably for the weather. They rent all of the equipment needed. I suggest gloves and safety glasses. You should have good luck finding Herkimer Diamonds here since it's still an active mine unlike the KOA...More

1  Thank ff2307
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Questions & Answers
Joe C
16 November 2016|
Response from Lou Ann N | Reviewed this property |
They are closed for this season but open April 1,2017 and hours are 9-5 according to their website. They operate April 1 to October 31. Google it for more information.
21 June 2015|
Response from Elisha-John H |
21 February 2015|
AnswerShow all 2 answers
Response from TanteJaye | Reviewed this property |
On their website, they have crystals for sale. Good luck.