We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Ace Of Diamonds Mine

Certificate of Excellence
Sponsored by:
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Sponsored by:
Get directions
Address: 84 Herkimer St, Herkimer, NY 13406
Phone Number: (315) 891-3855

TripAdvisor Reviewer Highlights

Read all 91 reviews
Visitor rating
  • 45
  • 31
    Very good
  • 6
  • 2
  • 7
Fun time

We went with a group of about a dozen people. The kids ranged in age from 9 to 13. We all had a great time. The rock pile is only a very short distance from the cars. We left our... read more

4 of 5 starsReviewed May 16, 2016
Mark T
Saratoga Springs, New York
Add Photo Write a Review

91 Reviews from our TripAdvisor Community

Traveler rating
Traveler type
Time of year
Showing 91: English reviews
Level Contributor
15 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 7 helpful votes
5 of 5 stars Reviewed 4 days ago NEW

it was way too hot the day we were there but we had a great time and found some nice crystals. I'm looking forward to a return trip with the grandkids.

Thank Donald S
Level Contributor
3 reviews
5 of 5 stars Reviewed 1 week ago

This is the third time we've been to Ace of Diamonds mine in as many years. Every time we've gone we've spent from 4 - 8 hours and come home with a nice supply of beautiful Herkimers. Ace of Diamonds is a real commercial mine and they have a few acres of land where they drop truckloads of mine tailings... More 

Thank Cheryl H
Peterborough, Canada
Level Contributor
11 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 12 helpful votes
3 of 5 stars Reviewed 4 weeks ago via mobile

Went Sunday June 26 very hot day. We did not stay long. You are mostly out in direct sunlight. Wear good shoes and pants and eye protection. This was a great experience. Not one I would do again too boring for me just banging on rocks.

1 Thank Colleen N
Hudson, New Hampshire
Level Contributor
57 reviews
22 attraction reviews
common_n_attraction_reviews_1bd8 12 helpful votes
5 of 5 stars Reviewed June 21, 2016

What a great experience we had at this mine. We ended up bringing home quite a few 'diamonds' of all different sizes and I am still amazed at how something so beautiful is created over time inside these rocks. Some of these crystals are millions of years old....how cool is that??!! I would not recommend bringing really young children to... More 

1 Thank Joanne V
Level Contributor
78 reviews
40 attraction reviews
common_n_attraction_reviews_1bd8 65 helpful votes
5 of 5 stars Reviewed June 16, 2016 via mobile

Checked out the Ace of Diamonds Mine after having no luck at Herkimer Dimond Mine. It costs $1 less here. It was pouring rain & my friend & I wore ponchos but still got soaked & full of mud like little kids!! We had so much fun. It can be hard work to find these diamonds. We brought our own... More 

1 Thank WorldTraveler0505
Saratoga Springs, New York
Level Contributor
60 reviews
23 attraction reviews
common_n_attraction_reviews_1bd8 8 helpful votes
4 of 5 stars Reviewed May 16, 2016

We went with a group of about a dozen people. The kids ranged in age from 9 to 13. We all had a great time. The rock pile is only a very short distance from the cars. We left our trunk open with a cooler. The kids would pound rocks and then take a break and have a drink. Everything... More 

Thank Mark T
Cooperstown, New York
2 reviews
common_n_attraction_reviews_1bd8 1 helpful vote
1 of 5 stars Reviewed May 9, 2016

no one in our group found anything and we went everywhere in that place . 10-20 ft high piles of dump truck boulders you have to climb on .One dumped dirt pile where you were supposed to find crystals . One person found 1 the size of a sesame seed .Don't waste your money. Even in the upper half where... More 

1 Thank gailstrano
Level Contributor
14 reviews
common_n_attraction_reviews_1bd8 7 helpful votes
5 of 5 stars Reviewed May 9, 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
Level Contributor
13 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 15 helpful votes
3 of 5 stars Reviewed March 24, 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
Kitchener, Canada
Level Contributor
49 reviews
37 attraction reviews
common_n_attraction_reviews_1bd8 25 helpful votes
5 of 5 stars Reviewed January 2, 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 hours on a beautiful afternoon and left with a fair amount of booty! Would recommend!

1 Thank Sarah H

Travelers who viewed Ace Of Diamonds Mine also viewed


Been to Ace Of Diamonds Mine? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Ace Of Diamonds Mine and other visitors
2 questions
Ask a question

See all questions (2)

Questions? Get answers from Ace Of Diamonds Mine staff and past visitors.
Posting guidelines
Typical questions asked:
  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?