Giant 720+ carat kunzite cut by John Ramsey and featured in Gems and Gemology. Ramseygems.com
A long time ago we were offered the opportunity to purchase the large kunzite crystal shown in the photo at the very top of this post. It weighed in at about 1 kilo which equals about 5,000 carats. After days of thinking and figuring we sawed the gem as you can see in the second photo. In photo #2 the sawed pieces are sitting on the saw itself. It was a nervous time but we were lucky and the sawing came out just fine.
In the third photo you can see the sawed pieces, one finished piece, and one preformed piece attached to the “dop” which fits into the faceting machine. Finally in the fourth photo you will see the largest finished piece which came out at about 720+ carats.
The largest two pieces wound up being sold to a gem dealer one of which he told me would wind up in his personal collection.
The third largest piece wound up in the collection of a university on the East Coast. The 230 carat “baby” of the group wound up with a gem dealer.
Kunzite was first discovered in the USA by George Kunz who, amongst other things, traveled around the USA examining mining sites and described minerals that had not been previously known. Kunzite was unique at the time based on its color. The mineral spodumene had previously been discovered but not the pink/lavender variety. Of course since that time good quantities have been found notably in Brazil and Afghanistan. As with most pegmatite minerals quantities of kunzite available in the market can vary wildly according to mining production. One of the best analogies to understand mining economics of minerals like kunzite, tourmaline and aquamarine exists in casinos. Mining these minerals is similar in many ways to putting money into a slot machine. Miners start with a certain amount of capital and keep putting money into the project. They may or may not hit a jackpot before their capital runs out. Sometimes a miner will give up and the next miner into the same mine will hit the jackpot. Note the gem in the photo. This gem is a wonderful example of cut and color in kunzite. The piece is 50.50 carats and is very nicely cut.