Herkimer Diamonds


Cell Phone Users
Please Scroll Down
or Turn Sideways

Order securely with PayPal
Note: Paypal cart will open a new browser tab.

Sign up for Announcements!
NOTE ! Our mailing list was accidentally deleted July 2019.
PLEASE Sign Up again to receive Announcements.
Sign up for Announcements

Be the first to know when new crystals are added to the web site.

You will need to confirm your subscription by replying to a verification email that will be sent to your in box after you sign up for Announcements.

Please note:
  • Announcements, and other mail from us, may filter to the Junk or Spam mail folder. If this should occur, mark the message as "not Spam" and add us to your contacts list.
  • It is the aggressive nature of the spam filters in the email programs that sometimes mark legitimate mail as spam.

Your privacy is important to us.
Email addresses are never shared, nor is any personal information ever collected.

Copyright HerkimerCrystalsOnline.com, 2002-2020

Complete quartz crystals.
More pictures below



Two C Grade Crystals

Length: 20-20.75 mm
Width: 13.75-17 mm
Weight: 39.92 ct. / 7.94 g total

Here are two similar Herkimer Diamonds, both have a clear and cloudy side. Sizes and descriptions:

  • 20x13.75x11 mm / 16.7 ct. / 3.3 g complete crystal. One point is sharp and complete, the other has a matrix blemish. Definition is good and a well defined key mark is present.
  • 20.75x17x15 mm / 23.22 ct. / 4.65 g Herkimer Diamond, technically double terminated. One termination is sharp, the other has hopper markings. Most facets are smooth and complete. In bright light, an elusive rainbow sparks.

All of our Herkimer Diamonds are mined in Herkimer, NY; this is also where the gemstone gets it's name. Crystals of this quality are found in only a few places on the Earth. They are pictured in their natural state and dated at 300-500 million years old. Enjoy the images of these Natural Beauties.

Price: US$ 39.00
Order via Paypal:

Order via Email

Like It? Save it to your Pinterest board !




Two Herkimer Diamonds mined in Herkimer, NY
Ruler in background to show size.

Technically double terminated crystals.

Images shows sharp termination tip on each crystal

Two C grade Herkimer diamonds.



AA Crystals | A Crystals | Atypical | B Crystals | C Crystals | D Crystals | Matrix | Machine Cut Jewelry | Natural Herkimer Jewelry | Machine Faceted Herkimer's | Order Info | Home | Email | About Us