Andalusite is strange and beautiful and really quite hard to find in larger sizes. Andalusite is notable for a very strong pleochroism with a different color associated with each of 3 different crystal axes. Note the different colors in the gems in the photo. Also note the rough, uncut gems in the background.
For a number of years, years ago, we had a wholesale client who was anxious to buy all the larger sizes of Andalusite we could supply. His demand lasted quite a while. What a wild around the world chase he started. That first year on a trip to Sri Lanka we found one very beautiful Andalusite cut gem that was very large at over ten carats. And then—no more Andalusite in Sri Lanka on subsequent trips.
Later that year on a trip to Brazil we encountered a fellow that had some rough Andalusite. He wasn’t officially in the gem business but his main business took him by some Andalusite mines in the state of Espiritu Santo. These mines were worked as side businesses by coffee growers. Their coffee plantations were very remote and nobody visited the growers and the growers didn’t visit anybody—except for Valdomir. Valdomir sold chemical fertilizer to the coffee growers and had to visit them regularly. He was their access to the world and the man who could bring their Andalusite to the market. For a few years back then Valdomir dominated the Andalusite business and we had an exclusive with Valdomir.
One of the best things about that quest for Andalusite was getting to know the state of Espiritu Santo. The capital of that state is Vitória. Vitória is one of the most beautiful settings you can imagine. The setting is a lot like Rio de Janeiro but without the city sprawl. There are the large inselbergs similar to Sugar Loaf and Mount Corcovado, a beautiful bay and relatively fewer people.
One of the most elusive gems listed as a birthstone is aquamarine. March babies are lucky to have such a wonderful gem as their birthstone on the one hand yet true aquamarine can be difficult and many times very expensive to acquire. You will find in the accompanying picture one lot of cut aquamarine in the manner often used by dealers to show to other dealers in loose gems. Note the distance between gems—to keep chipping from happening. Note the different cuts in the lot. Gem rough is so rare and expensive that gems have to be cut according to the piece of rough the cutter is fashioning from rough to cut. The color of this lot is exceptional. Years ago this was a fairly normal (never common) sight in the great aqua mining regions of Brazil. Not so much anymore.
The size of the pieces is also, always a big issue. Smaller aqua gems like smaller diamonds are always much more in supply than larger stones. Smaller aqua gems are currently available enough that they can be cut into calibrated stones which will fit into standard mountings or in mountings produced in quantity. Calibration is done in millimeters (the gem business being international uses the metric system). Smaller and popular calibrated sizes include 6x4mm, 7x5mm and 8x6mm.
We, at Gems At Large, have been amongst the few who have produced calibrated aquamarine in larger sizes. For many of our larger more exotic rings and pendants we have produced calibrated aqua up to 20x15mm (about ¾ of an inch by just over ½ of an inch). During the past few years however the rough to produce the larger calibrated sizes has just not been coming out of the Brazilian mines. Buying colored stones teaches a person about seizing an opportunity. What we can buy and sell this year may not be available next year. Aquamarine is truly an example of this phenomenon. When great aqua is available and at a fair price—we know to jump all over it!!!
This coming April yet another spectacular diamond will be at auction. This time the gem is a colorless stone of “D” color and is internally flawless. The auction this time will be held in New York at Sotheby’s. The gem is reported to weigh just over 100 carats and has been fashioned into an emerald cut (similar to the stone featured in the photo). Estimates of the price it will fetch are from $19 million USD to $25 million USD. If any of the recent auction results are predictive the price could well exceed the estimates. We will know soon.
Amongst other items on display is the most expensive piece of jewelry ever made specifically for a movie: the “Satine” necklace worn by Nicole Kidman in Moulin Rouge.
Other pieces include a stunning diamond brooch worn by Cate Blanchett to the Oscars, and a star-studded ring worn by world-renowned fashion designer Catherine Martin.
Having gems and jewelry on display at museums is a worldwide phenomenon. Of course if you’re visiting down under be on the lookout for displays of opal–the gem that made Australia famous. The last statement my opinion solely. But what else would a gem aficionado say?
Close-up photos of jewelry: Andrew Murray, Daily Mail Australia
The photo we’ve included in this posting is a good example of a really great sapphire. What makes is so beautiful and appreciated the world around? First of all there is what it is not. It is not so pale a color that we would say “who cares?” Secondly, the photo shows a stone that is not so dark that we would say “who cares?” What we are showing in the photo is a “Goldilocks” sapphire that is “just right” when it comes to depth of color. Not too dark, not to light. Next we have a stone that is not hampered by a lot of eye visible inclusions. The gem in the photo is relatively “clean” and flaw free. The combination of a just right color and good clarity give us the opportunity of seeing nice reflections off of the back facets while we are looking down into the stone from the top. The gem in the photo is relatively well cut and that is another reason we’re getting some nice reflections off the back facets. Color, clarity and cut…3 out of the 4 “C’s”. The only thing left is the size (weight in carats). Well, we’ll leave that to the imagination this time….Is it 1 carat, 5 carats, 50 carats? Might as well dream………
Europe is all abuzz comparing the two young royals Princess Kate and the recently crowned queen of Spain the former Letizia Ortiz Rocasolano. Queen Letizia married Felipe VI of Spain in 2004 and was a princess until June 19, 2014. On that date her spouse’s parents abdicated in favor of the younger couple. Suddenly Letizia has access to the crown jewels of Spain and has been wearing tiaras amongst other fine jewels. The Euro tabloids have fastened on the two relatively young royals and is always showing them in tiaras. While the two ladies have a 10 year difference in age they both photograph well and show jewelry to its best advantage.
Chances are the two are so far removed by geography that comparisons and competitions are the last thing on their mind. In any case the crown jewels of Great Britain are miles ahead of the crown jewels of any other country. Convenient ownership of the right colonies at the right time gave Britain the edge. From Sri Lanka came great sapphires. From South Africa came the world’s largest collection of large fine diamonds. India contributed emeralds.
According to sources some of the jewels owned by the Spanish royal family were sold while they were in exile from 1931 to 1968. Jewels have often come in handy as a form of portable wealth for many centuries.
August babies have a lot better birthstone than they may have imagined. Ten cool facts that they may not know about peridot.
1. Cleopatra’s famous emeralds may have in fact been peridot.
a. The island of Zabargad in the Red Sea off of Egypt is an ancient source for peridot.
2. Zabargad Island is also known as Topazios Island and St. John’s Island.
3. Peridot comes from several sources around the world—Burma (a.k.a. Myanmar), China, Afghanistan, Pakistan and San Carlos Reservation, Globe Arizona USA!!!
4. While peridot comes from a number of sources, reliable sources producing large fine quality gems remains elusive. Want a lot of small peridot gems—no problem. Want a lot of large fine peridot gems—take a ticket and stand in line.
5. Peridot crystals from Zabargad were easy to identify as from that source in that many o them were exposed to sand storms through the ages and displayed a sand-blasted surface.
6. Great color in peridot is also the perfect spring green—green and gold slammed together.
7. Peridot comes from deep in the earth’s mantle and is brought up to the surface in volcanic activity.
8. Peridot also comes from outer space. Meteorites have been discovered with beautiful peridot inside.
9. Peridot only comes in green as opposed to many gems which come in a veritable rainbow of colors. Such versatile gems include: diamond, sapphire, garnet and of course the rainbow gem—tourmaline.
10. Peridot is one of John Ramsey’s favorite gems to cut and polish.