spinel

  • An A-maze-ing Fingerprint in Spinel

    Spinel with maze-like fingerprint.

    A web-like fingerprint creates a maze-like pattern in spinel.

  • Black Prince's Ruby • Blood-Red Souvenir of Conquest • Spinel

    The Black Prince's Ruby • Blood-Red Souvenir of Conquest

    The history of the Black Prince's Ruby, one of the world's most famous precious stones.

  • Describing Color in Gems • A Fool's Guide • Lotus Gemology

    Describing Color in Gems • A Fool's Guide • Lotus Gemology

    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 • Book Review

    Book Review: Diamonds – An Early History

    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.

  • Downtown • Gem Hunting in Tanzania • Lotus Gemology

    Downtown: Gem hunting in Central & Southern Tanzania  |  Lotus Gemology

    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.

  • Gem Inclusion Pairs • Hyperion Siamese Twins

    Gem Inclusion Pairs • Hyperion Siamese Twins

    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.

  • Inclusions in Gemstones • Hyperion Literature Sources

    Hyperion • The Literature of Inclusions in Gemstones

    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 • Gemology Through Lotus-Colored Glasses • Book Order Page • Lotus Gemology

    Inside Out: Gemology Through Lotus-Colored Glasses

    Introducing…

    Inside Out: GEM•ology Through Lotus-Colored Glasses

    by

    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

    International Shipping & Handling from Thailand
    Ships via International Parcel Air (2–3 weeks)

    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

    Once you click the "Add to Cart" button below, you can select the quantity on the next page.
    Discounts available for orders of 16 copies or more; please contact us.

    Order This Book Here

    Covid-19 Shipping Update • 25 March 2022

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    Title Page

    Inside Out: Gemology Through Lotus-Colored Glasses – Title Page

    Introduction

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Sample Interior Spreads

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Inside Out: Gemology Through Lotus-Colored Glasses

    Ruby & Sapphire: A Gemologist's Guide – Index

     

    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
  • Lingua-3 Spinel Crystals

    Spinel crystals

  • Lotus Gemology Price List

    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.

    PDF icon

     

    The Lotus softcover report. Compact and affordable, it puts all of the important information about a gem at your fingertips.The Lotus Gemology softcover report. Compact and affordable, it puts all of the important information about a gem at your fingertips.

    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:

    PDF icon

     

    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.

     

    The Lotus Gold hardcover report is available for ruby, sapphire, spinel, jade and a handful of other stones. Lotus Gemology's Richard Hughes designed the world's first deluxe lab report, a concept that has been widely copied by others.The Lotus Gold hardcover report is available for ruby, sapphire, spinel, jade and a handful of other stones. Lotus Gemology's Richard Hughes designed the world's first deluxe lab report, a concept that has been widely copied by other labs.

    Download a sample hardcover report here:

    Sample Lotus Hardcover Report

    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.

    Lotus Gold, Silver and Black softcover reports. Lotus Gemology's report covers are color coded so that one can quickly understand the identity of the gem. Rather than hiding treatment information behind arcane codes, Lotus Gemology is the world's only lab that makes clear the treatment status. Lotus Gold is reserved for untreated gems, Lotus Silver for gems treated by industry-standard techniques and Lotus Black for heavily treated or man-made gems.Lotus Gold, Silver and Black softcover reports
    Lotus Gemology's report covers are color coded so that one can quickly understand the identity of the gem. Rather than hiding treatment information behind arcane codes, Lotus Gemology is the world's only gem lab that makes clear the treatment status. Lotus Gold is reserved for untreated gems, Lotus Silver for gems treated by industry-standard techniques and Lotus Black for heavily treated or man-made gems.

    Color Types

    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

    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. 

    Opt for the addition of a "Rough to Cut" layout to hardcover reports to display the journey a stone goes through from rough to finished gem.Opt for the addition of a "Rough to Cut" layout to hardcover reports to display the journey a stone goes through from rough to finished gem.

    Upon request we can include a Bespoke Photo with a hardcover report. One option is to highlight the gem with an extra photo with a unique background.Upon request we can include a Bespoke Photo with a hardcover report. One option is to highlight the gem with an extra photo with a unique background.

    Another Bespoke Photo option is to add an inclusion photo to a hardcover report. Each inclusion acts as a "fingerprint" of the stone, displaying its individual beauty both inside and out.Another Bespoke Photo option is to add an inclusion photo to a hardcover report. Each inclusion acts as a "fingerprint" of the stone, displaying its individual beauty both inside and out.

    Lotus Gemology can create customized hardcover reports for layouts of loose stones that highlight the beauty and rarity of a matched pair or suite. Contact us directly for a quote.Lotus Gemology can create customized hardcover reports for layouts of loose stones that highlight the beauty and rarity of a matched pair or suite. Contact us directly for a quote.

    Lotus Gemology hardcover reports can beautifully display matched pairs of suites of stones that have been mounted in jewelry. Contact us directly for a quote.Lotus Gemology hardcover reports can beautifully display matched pairs of suites of stones that have been mounted in jewelry. Contact us directly for a quote.

    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

    ฿13,000

     

    Special Report Appendices

    Special comments are issued at the discretion of Lotus Gemology gemologists. Only for hardcover reports.
    Lotus Gem of Distinction Comment (1 page; fine gems only) Report fee + ฿8,000
    Lotus Royal Gem Comment (3 pages; reserved only for the very top gems) Report fee + ฿16,000
    "Rough to Cut" Layout • Add an additional photo of the gem as rough, preform, and cut Report fee + ฿2,200
    Bespoke Photo • Add a custom tailored photo with background or an inclusion photomicrograph Report fee + ฿2,200
    Custom Hardcover Report This email address is being protected from spambots. You need JavaScript enabled to view it.

     

    Express Service (contact us for availability and details)

    Express Service Report fee + ฿4,000

     

    Memberships

    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.

     

    Additional Services

    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 ฿1,000
    Duplicate 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 This email address is being protected from spambots. You need JavaScript enabled to view it..
    Clients that fail to bring in a receipt for pick-up will be charged a fee of ฿500.

     
  • Mogok Revisited • A Brief Stay in Heaven • Lotus Gemology

    Mogok

    An account of a 2013 visit to Mogok – Myanmar's fairy-tale wonderland.

  • Oiled Gems Lab Alert • Lotus Gemology

    Oiled Gems Lab Alert • Lotus Gemology

    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.

  • Oiled Spinel & Tanzanite • Shocking Revelations

    Oiled Spinel • A Shocking Revelation

    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.

  • Pigeon's Blood • Pilgrimage to Mogok – Valley of Rubies

    Pigeon's Blood • A Pilgrimage to Mogok – Valley of Rubies

    The author makes his first pilgrimage to Burma's Mogok Stone Tract.

  • Ruby & Sapphire Color Types • From Peacock to Pigeon's Blood

    From Peacock to Pigeon's Blood: Deconstructing Lotus Color Types

    A brief description of the color types for ruby and sapphire used at Lotus Gemology.

  • Ruby and Spinel in Tajikistan • Moon Over the Pamirs • Lotus Gemology

    Moon Over the Pamirs  |  Chasing Ruby and Spinel in Tajikistan

    A 2006 mission to remote ruby and spinel localities in Tajikistan.

  • Ruby, Sapphire & Spinel Auction Records • Under the Hammer • Lotus Gemology

    Ruby, Sapphire & Spinel Auction Records • Under the Hammer • Lotus Gemology

    World auction records for ruby, sapphire and spinel.

  • Ruby, Sapphire & Spinel: An Archaeological, Textual and Cultural Study • Book Review

    Book Review: Ruby, Sapphire & Spinel: An Archaeological, Textual and Cultural Study

    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.

  • Spinel • Resurrection of a Classic • Lotus Gemology

    Burmese spinel

    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.

  • Spinel Inclusions • An Exercise in Aesthetics

    Inclusions in Spinel • An Exercise in Aesthetics

    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.

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