by Richard W. Wise, G.G.
©2009 (all rights reserved)
Rubies From Winza, Tanzania:
As promised, here is an image of the 4.10 carat cushion shaped ruby from the new strike at Winza, Tanzania. Ruby from this source contains iron, though not as much as gems from the now exhausted Thai deposits. Stones from this source will not fluoresce strongly in ultraviolet light and thus will not exhibit the supercharged fluorescence of the very best from Burma. Again, due to iron, the red may show a slightly orangy secondary hue.
That said, natural unenhanced rubies over three carats are almost unobtainable. These new Winza beauties will stand toe to toe with most Burmese at a much more reasonable price.
An Extraordinary Strand of Natural Pearls:
I spotted a magnificent strand of natural pearls from a dealer at AGTA. What makes this two strand exceptional is its symmetry. When considering natural pearls it is necessary to bracket all that you have come to expect from their cultured counterparts. The word round, for example, takes on a whole new meaning when applied to naturals. We have gotten used to the "perfection" of the ubiquitous Akoya pearls from Japan, perfectly round, with matching color. Few realize that all this is a result of processing; the pearls are left in the shell just long enough to deposit a thin coat of nacre, so thin that GIA had to redefine it's definition of "thick" coating from 0.50 to 0.25mm. The pearls are then bleached white to remove spots, then further bleached for uniformity of color, then dyed pink.
The World Of Fantasy:
In the world of natural pearls, perfect symmetry, combined with matching color, resides in the realm of fantasy. The strand pictured right is natural, the pearls graduate from 4.31-9.50mm, each is perfectly round and well matched in color and luster. Compare these two with the Baroda Pearls (pictured left). Readers will recall that the Baroda strand sold at a world record price. A cursory look reveals that these magnificent gems are not really round---yet they achieved a record of $7.1 million at auction.
Secrets Of The Gem Trade Goes To Third Printing:
Brunswick House Press has just announced that the paperback edition of my Secrets Of The Gem Trade, The Connoisseur's Guide To Precious Gemstones is being reprinted. Originally published in hardcover in 2003, now with 32,000 copies sold, Secrets has become a best seller. "Secrets has succeeded beyond our wildest expectations." said Dick Sage, President of Brunswick House.
We have a few copies available at R. W. Wise, but the publisher will not be able to fill wholesale orders until the new edition arrives in about 90 days.
“Since radiation is the cause of pink color in tourmaline, the presence of these features should not be attributed to any type of intentional diffusion, but rather to the influx of radioactive fluids in their post-growth environment.”
John I. Koivula, Chief Gemologist, GIA
"THERE ARE NO PROVEN EXPERTS ON THIS SUBJECT OUTSIDE OF ROBERT (James) EXCEPT TED THEMELIS WHO HAS ALREADY CONFIRMED ROBERT’S FINDINGS. SHOW ME ONE PERSON OF ANY STANDING WHO HAS DONE THE AMOUNT OF RESEARCH THAT ROBERT HAS USING ADVANCED ANALYTIC TECHNOLOGIES AND I’LL LISTEN. GIA’S PRESS RELEASE WAS BASED ON OLD-FASHIONED INFERENTIAL METHODS DERIVED SOLELY OR MOSTLY FROM MICROSCOPE OBSERVATION OF ONE STONE. ROBERT HAS TESTED THOUSANDS OF STONES. DUH!. SO IF THE PUNCH-DRUNK FIGHTER TO WHOM YOU REFER IS ROBERT, COME TO THE ARIZONA HOTEL ON FRIDAY,"I KNOW WHERE TO PUT MY MONEY. IT IS A HORSE RACE. AND THE ODDS ARE RUNNING STRONG AGAINST YOU (Richard Wise) AND THE GEMOLOGICAL ESTABLISHMENT. THAT’S WHY I HAVE REPORTED THAT THIS IS AN EPOCHAL GEMOLOGICAL CRISIS. CROSS-SPECIES DIFFUSION WILL PROVE OUR INDUSTRY’S EQUIVALENT OF THE SUBPRIME MORTGAGE CRISIS." (emphasis Federman, parenthesis mine)
David Federman, Editor-in-Chief, Colored Stone
by email 1/30/09
"I read RJ (Robert James) newsletter forwarded to me by another colleague. As for as I am concern, RJ does not deserve my reply or any respect whatsoever. He is trying to tell us about his invention of the hot water using all kinds of tactics. In conclusion, it does not serve any useful purpose to discuss any longer RJs research activities. There are more important issues to discuss in the gemological forums. Let's move forward."
Research & Development
Gem Treatment Lab
from Gemologyonline 2/13/09
Visit Burma's Valley of the Serpents and learn how sapphire is mined and graded. Follow me on gem buying adventures in Burma, Thailand and Sri lanka. Visit the gem fields of Australia and Brazil. 120 carefully selected photographs showing examples of the highest quality gems to educate the eye, including the Rockefeller Sapphire and many more of the world's most famous gems. Consider my book: Secrets Of The Gem Trade, The Connoisseur's Guide To Precious Gemstones.
“Wise is a renowned author... He’s done a marvelous job of this first book, monumental work, a tour de force...My recommendation: Buy this book”.
Charles Lewton-Brain, Orchid
whether you like to know what the best colour is in Tanzanite, or how to grade a Diamond, you will find it in this book. No other book I read before dealt with this topic is such detail as Richard Wise's masterpiece."
A. Van Acker, FGA Amazon June 2005
"Secrets Of The Gem Trade: The Connoisseurs Guide To Precious Gemstones by Richard W. Wise is an impressive new reference for dedicated dealers and collectors of gems, gemstones, and ... pearls. Introducing and descriptively exploring each and every gem covered in the easy-to-use reference, Secrets Of The Gem Trade contains an illustrated summary of each stone inclusive of its history and general information, hue and tone, saturation, which may be noticed as the finest, an understanding of the particular gems rarity, and the caution for synthetics and how to depict them, however depending upon the stone there may be description of clarity, color fading, multi-color effect, etc. Secrets Of The Gem Trade is very highly recommended to anyone interested in gemology as a superbly organized, authoritative, comprehensive, and easy-to-follow reference."
Midwest Book Review April 2006
Only $39.95 in paperback. Read a couple of chapters online an order: We recently discovered about a dozen copies of the out of print hardcover: $79.95 signed by the author www.secretsofthegemtrade.com.
Buy it on Amazon: www.amazon.com