gem lab

  • About Lotus Gemology

    When you see a fine ruby, it does something to you. It’s not about the value.
    If it were simply the value, I’d go out and buy a kilo of gold. Richard Hughes to journalist Rod Nordland
    “On the treacherous trail to the rare ruby red”  |  1982  |  Asia

    Burmese star ruby. Photo: Wimon Manorotkul, Lotus Gemology.

    Lotus Gemology begins with a simple idea – beauty is the principal source of attraction for precious stones. Thus it should also be the major focus of gemology. In other words, the GEM is the most important part of gemology.

    It is our belief that gemology is not simply about counting atoms; to apply science absent a discussion of how it relates to aesthetics and desire does a disservice not just to clients, but to the jewels themselves. We do not believe that attraction can be reduced to a simple set of measurements, anymore than the beauty of a rainbow or sunset can be expressed by mathematical formula.

    Rest assured, we are not Luddites. We not only appreciate science, but use it daily. At the same time, we recognize that many parts of the human experience extend into realms far beyond science. Thus the gemology at Lotus includes not just science, but weaves into the mix history, culture, art and travel. We do this in the belief that these factors play equal roles in how humans perceive desirability and value. 

    Like a small French restaurant, we believe that crafting a fine meal takes time and individual care; thus our seating is limited. The translation of the intangibles of rarity and aesthetic beauty is our strength.

    Precious stones are among the most compelling examples of Mother Nature’s artistic genius.

    Lotus Gemology operates from a base of over 80 years of collective experience in the study, purchase, sale and appreciation of precious stones. Our lives have been enriched beyond measure by our involvement with these gifts of nature and we believe if we characterize them with the appropriate reverence and care, we can open this magical world to others. This is our goal.

     
     
  • 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.

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    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:

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    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.

     
  • Padparadscha or Pretender • An Unusual Pink-Orange Sapphire

    Padparadscha or Pretender • An Unusual Pink-Orange Sapphire

    An orangish pink “padparadscha” sapphire was submitted for testing at Lotus Gemology’s Bangkok laboratory. Testing showed a number of conflicting features that suggested the gem was a cleverly treated synthetic pink sapphire designed to imitate natural padparadscha.