Large
 Herkimer Diamond

 

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Rare double terminated quartz crystal

Elusive rainbow flashes

Large Herkimer crystal

Photo captured a window facet
Many more photos below

 

 

Atypical AA Grade Quartz Crystal

 
 
Length: 21.75 mm
Width: 15 mm 
Depth: 12 mm 
Weight: 20.93 ct. / 4.1 g 
Notes:

At over 20 ct., this is a large Herkimer Diamond. Our grading process finds less than 5% of Herkimer's mined are AA grade quality. Of these 5 in 100 natural gemstones, maybe 1 or 2 is 12 mm (1/2") or larger. Anything over 20 mm is very rare. Grading remains a very subjective yet important process when considering Herkimer Diamond quality. There is sometimes a fine line between each of the grades. When determining AA and A grades, size is an important consideration. Please rely on the photographs and descriptions of our Herkimer Diamonds to make your buying decisions; and be confident in knowing the descriptions of the crystals for sale are accurate and sincere.
Externally there is  a shallow, geometric key mark on one facet.  Also, a divot, likely caused by a hydro popping, covers another facet.
Internally it's eye clean and water clear!  With a loupe 2 teeny bubble are all that's inside.
This is a large, fantastic AA grade Herkimer Diamond!

   
Price: US$ 225.00
   
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Large AA grade Herkimer Diamond
Gorgeous Herkimer gemstone

External divot reflected in picture

Excellent clarity shows here.

Crystal measures 21.75x15 mm

Photo shows sharp double termination points.

Natural quartz crystal with a bright shine!

Large Herkimer Diamond

 

 
 

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