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Ace Of Diamonds Mine

84 Herkimer St, Herkimer, NY 13406-2713
+1 315-891-3855
Review Highlights
Ace is where it's at !

We spent the entire day prior to this visit up the street at the KOA Herkimer mine and had... read more

Reviewed 6 October 2015
Cleveland, Ohio
You don't have to mine them, you can buy them in the gift shop!

While this look like a blast, smashing rocks, finding quartz crystals and there is something to be... read more

Reviewed 21 September 2015
Minneapolis, Minnesota
Read all 108 reviews
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  • Excellent54%
  • Very good32%
  • Average7%
  • Poor1%
  • Terrible6%
Travellers talk about
“sledge hammer” (12 reviews)
“rock pile” (3 reviews)
84 Herkimer St, Herkimer, NY 13406-2713
+1 315-891-3855
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Reviews (108)
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31 - 40 of 108 reviews

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 21 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 18 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
Reviewed 9 September 2015

They will supply you with all the tools you need, but a few extra items would be helpful. I recommend stout boots, sunscreen, knee pads, a big hat, work gloves, water, and some non-steroid anti-inflammatory. Perhaps a camp stool. And someone to hold a parasol...More

2  Thank marfita
Reviewed 8 September 2015

I went to the Ace of Diamonds Mine with a couple of my friends for a weekend trip. We camped on their property and mined there for 3 days. The campsites were small, and close to each-other, but the other campers were so nice that...More

2  Thank nlg94
Reviewed 30 August 2015 via mobile

We visited Ace of Diamonds yesterday and had a wonderful yet slightly exhausting day surface collecting and smashing up near unbreakable host rock. :) Yesterday's visit was our 3rd to Ace of Diamonds in the past 2 years. We did not find as many crystals...More

Thank Rebecca H
Reviewed 25 August 2015

I took two preschoolers here because I thought it would be something different and fun to do in the outdoors. They were armed with their little hammers and buckets and had no problem climbing over the dirt and giant rocks and truly enjoyed the experience....More

2  Thank aealex
Reviewed 24 August 2015

This place is better for mining than Herkimer. My husband and I always have lots of fun. If your up to cracking rocks and digging in the dirt you are going to love this place, I tell my friends and family it is the place...More

2  Thank toddl289
Reviewed 17 August 2015

Brought my family of 7 here to try our luck. I rented a hammer and a chisel for each person and then we split up. I spent about 3 hours pounding hard on rocks and boulders and managed to collect about 4 small diamonds. The...More

8  Thank ObjectiveReviewerJMS
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Nearby Attractions
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Herkimer Home State Historic Site
15 reviews
17.29 km away
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Questions & Answers
Joe C
17 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.