A web-like fingerprint creates a maze-like pattern in spinel.
The history of the Black Prince's Ruby, one of the world's most famous precious stones.
Color types such as "pigeon's blood," "Paraíba" and "cobalt blue" have become wildly popular in the gem trade. But there is a vast difference between coining such terms and applying them in a way that is both consistent and logical. Richard Hughes casts a critical eye on the subject.
Diamond: An Early History of the King of Gems by Jack Ogden, 2018. Yale University Press, New Haven and London, www.yalebooks.com/www.yalebooks.co.uk, 388 pages, illus., ISBN 978-0-300-21566-3. $40 hardcover.
Since the late 1960's, East Africa has been home to some of planet earth's greatest gem discoveries. And yet, little has been written about certain of these finds. In the autumn of 2007, the authors set out to fill in the gaps, specifically regarding Tanzania's Mahenge, Songea and Tunduru regions.
Why should Hugh Hefner be the only one to enjoy twins? This special Hyperion Inclusion Gallery features images from the Lotus Gemology Hyperion Inclusion Database, but are shown as pairs, all the better to compare one form of beauty with another.
For those who wish to explore the literature of inclusions in gemstones further, we have selected the following articles and books that are of particular merit. Most of these are cited in the Lotus Gemology Hyperion Inclusion Database, but are listed below in a more convenient summary format. Many of the links will allow you to download a PDF copy of the original article.
Inside Out: GEM•ology Through Lotus-Colored Glasses
E. Billie Hughes | Richard W. Hughes | Wimon Manorotkul
with a foreword by Paolo Minieri
Chinese translation by Jason C.H. Kao (高嘉兴), with Jinding Yu (俞瑾玎) and Bonnie Chao (晁艳)
From the dawn of time, precious stones have both attracted and fascinated humans in ways that few other items could. For while objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of Mother Nature, but their visual splendor is truly eternal.
This book presents a completely fresh approach to the subject. Dubbing it humanistic gemology, the authors take readers around the world, showing the places they have explored in their search for gems, along with the people and cultures encountered along the way.
Within this volume, remarkable photographs of the human world are interwoven with images of the microscopic realm of the gems themselves. In a lifetime beset by time control, where living is broken into ever smaller bits, as you browse through these pages suddenly you plunge into a domain of frozen time, one that affords vistas of millions or even billions of years. For jewels offer not just superficial beauty, but a window on the primordial forces that birthed both our planet and universe.
Inside Out – Gemology Through Lotus-Colored Glasses represents a fascinating new direction for gemology, linking the external and internal worlds of precious stones for the first time.
Published 2020; Now shipping
Standard Edition – Hardcover
Price: Thai Baht 3000 + Shipping & Handling
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Hardcover with Dust Jacket
152 pages; 270 x 360 mm (10.6 x 14.2 inches); 2.5 kg shipping weight
Full Color Throughout | Bilingual text in English & Simplified Chinese
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Sample Interior Spreads
A few comments from reviewers…
I am doubtless readers both inside and outside of the gem trade will enthusiastically welcome Inside Out. Buy it, read it, give it away. I am fully confident you will be satisfied, ingratiated and inspired.
Jeffery Bergman – InColor Magazine
This book fills a gap in the literature on gems by pictorially exploring the relationship between humans and gems on an artistic and emotional level. It is a work of art that lives from the quality of the photographs and gets by with minimal textual commentary on the images.
Michael Hügi – Journal of Gemmology
Inside Out is a truly stunning work reflecting the combnied personalities, skills, knowledge and philosophy of the authors, who have created something exceptional and innovative for the world of gemmology.
Terry Coldham – Australian Gemmologist
Gem Testing • Gemstone Identification • Origin Determination • Treatment ID Reports
The Lotus Hardcover Report is simply the finest gemological report in the world. A Bangkok gemologist
Lotus Reports and Prices
Lotus Gemology produces what we feel are the finest gem testing reports in the gemological field. Each report includes gemstone identification, treatment identification and, in certain cases (mainly ruby, sapphire, spinel, emerald and jadeite jade) origin determination.
Download a pdf of our complete price list here. Scroll down to see report samples.
Lotus Softcover Reports
The compact four-page Lotus softcover report includes:
- A description of the stone
- Gemstone identification
- Color Type (where applicable)
- Origin (where applicable)
- Care instructions
Download a sample PDF report here:
Lotus Hardcover Reports: The New Standard
Lotus Hardcover reports are elegant, highly customizable 15+ page reports with full-color photographs created to celebrate the rarity and value of gemstones. These reports enhance the value of your most precious stones by reinforcing the rarity and beauty of these gifts of nature. The Gold cover is strictly reserved for gems that are completely natural, with no enhancements beyond ordinary cutting and polishing. The hardcover report includes all of the identification information in the softcover report, with the addition of more extensive information and imagery. These are customized to suit the subject of the report and can include information on:
- Connoisseur's guides. How to recognize fine ruby, sapphire, and spinel with information on color and clarity.
- Origin. Maps, photos, and further details about the stone's origin.
- Pairs and sets. We describe the rarity factor and work that can go into composing matched suites.
- Additional photos. Inclusion photos, photos of suites or jewelry sets, and other additional images available on request.
- Padparadscha. A special supplement is included for padparadscha sapphire.
- Special Report Appendices. Customized special comments on the finest stones. These comments are only issued at the discretion of Lotus gemologists, and are only available with hardcover reports.
Download a sample hardcover report here:
Lotus Gold, Silver, and Black
Gold reports are issued for natural gems with no indications of any enhancement save for ordinary cutting and polishing.
Silverreports are issued for natural gems that have been enhanced to better display their beauty.
Blackreports are issued for synthetic and/or heavily treated gems, including lead glass-type hybrid stones.
Learn more about our enhancement codes here.
Color types are included free-of-charge for all reports for stones that fall within Lotus' color type ranges. To learn more, see the Lotus Gemology Guide to Color Types.
Origin opinions are provided free-of-charge for all reports when our testing reveals sufficient gemological evidence to make an origin determination.
Lotus Custom Reports
Customized hardcover reports are available on request for stones we determine to be of particularly significant value and rarity. The scope of these reports can vary greatly depending on customer requirements. For more information, please contact us directly.
All Lotus Identification Reports include a credit card-sized mini-report for portability, at no extra charge.
All prices are listed in Thai baht and are inclusive of 7% VAT.
Standard Identification Reports
Softcover Report (4 pp.) ฿4,000 Softcover Report • Matched Pair (4 pp.) ฿8,000
Premium Identification Reports • Only available for select gems. Contact us for details.
Hardcover Report (15 pp. or more) ฿12,000 Hardcover Report • Matched Pair (15 pp. or more) ฿16,000 Softcover + Hardcover Report
Express Service (contact us for availability and details)
Express Service Report fee + ฿4,000
Memberships are available for volume clients. This provides discounts on both softcover and hardcover reports and express fees to clients who pre-pay for services, at the following rates.* Membership Level Softcover Reports Hardcover Reports Express Service ฿100,000 10% Discount 10% Discount 10% Discount ฿500,000 15% Discount 20% Discount 15% Discount ฿1,000,000 20% Discount 30% Discount 20% Discount
* Services will be deducted from each member’s balance. Balances are held for two years and are non-transferable and non-refundable.
Withdraw a stone sent for testing (no report issued) ฿535 Verbal Color Analysis (for Lotus Color Types such as Padparadscha, Pigeon's Blood, Royal Blue, etc.) ฿321 Duplicate softcover report ฿1,000Duplicate hardcover report ฿2,000 Re-ID (within 12 months of original report) 50% of original report fee
Other services available on request; if you don't see it, feel free to
Clients that fail to bring in a receipt for pick-up will be charged a fee of ฿500.
An account of a 2013 visit to Mogok – Myanmar's fairy-tale wonderland.
Lotus Gemology warns that oiled rubies, sapphires and spinels are entering the Bangkok wholesale market in increasing numbers. Most, but not all, of these gems are originating from Burma.
When a red spinel and a tanzanite were submitted for testing, oil was found in the fissures. Removal of the oil resulted in a startling deterioration in clarity.
The author makes his first pilgrimage to Burma's Mogok Stone Tract.
A brief description of the color types for ruby and sapphire used at Lotus Gemology.
A 2006 mission to remote ruby and spinel localities in Tajikistan.
World auction records for ruby, sapphire and spinel.
Ruby, Sapphire & Spinel: An Archaeological, Textual and Cultural Study By Derek J. Content, 2016. Brepols Publishers, Turnhout, Belgium, www.brepols.net, 452 pages, illus., ISBN 978-2503568089. €150.00 hardcover.
Since the turn of the millennium, the price of fine spinel has risen at an incredible pace. No longer simply the poor man's ruby, spinel is finally getting the attention it deserves as one of the world's premier gems.
To the jeweler, spinel is famous for its vivid colors. But for the gemologist, this gem is unlike any other. Its extreme hardness allows a fine polish. Couple this with single refraction, which eliminates the image blurring found in most other gems, and a varied landscape of inclusion subjects, and the result is an unparalleled canvas of delight for the photomicrographic artist.