We offer free design assistance on any gem(s) you buy from our company. Though you may save money by working with our certified design assistants we will work with the mounting jeweler of your choice.

Marlborough Green Chalcedony, 4.94 ct. Round Cabochon
What is the rarest chalcedony? Marlborough Green mined out prior to 1980, very rare and often faked
buy chrysoprase
What is the rarest chalcedony? Marlborough Green mined out prior to 1980, very rare and often faked
Marlborough Green Chalcedony shown under flashlight to indicate exceptional clarity/clean gem.
This is the gem with no strong lighting as it would be in a shaded condition.

Marlborough Green Chalcedony, 4.94 ct. Round Cabochon

Regular price $1,029.00 $590.00 Sale

Marlborough Green Chalcedony, 4.94 ct. Round Cabochon

Shape - Round Cabochon cut in the USA

Weight - 4.94 carat

Size - 10mm x 10mm x 6.7mm

Color - Apple Green

Clarity - Translucent

Luster - Exceptional

Origin - Marlborough Australia

Treatment - None 

Hardness - 7

Notes - Marlborough green chalcedony / chrysoprase was wiped out by the high-end jewelry industry and collectors  in the 1970's due to it being a dead ringer for the highest-end jadeite (Imperial to Apple Green) hardness is excellent  and pieces of this vintage jewelry even with conservative amounts of the chalcedony and no diamonds, set in platinum or gold sell for very high prices.  Hard to come by now. A true investment gem. Our gems are from our rough and cut by award winning American gem-cutters. No mass production the material is simply not available. We will happily GIA test any gem for you and batch test our rough with GIA.