Diamonds and Gemstones Auctions Sales Databases

Open Market Sales Prices Databases for Important Diamonds


Compare asking price with real sales estimate value of diamonds and Gemstones analyse market sentiments

Gemmoprice databases records will help you make your business more profitable as you will buy, sell, and appraise with more confidence.
with each new live auction sale worldwide from leading auctioneers Bonhams, Sotheby's, Christie's, Phillips and Artcurial.
Full of data
subscribers access to details of thousands of important diamonds and gemstones sold at jewellery auctions worldwide.
For less than a coffee a day you will have essential information for yor business.How much is it worth knowing the right market price?

Have Fun Learn Fast

See How It Works

During the past 30 years, large auction houses have exerted a significant
influence on the market prices for major diamonds and colored stones.
Auction sales represent The price of goods and services when not controlled by the force of demand and supply
Filters & Order
Tens of filters allow you to get exhaustive answers to your questions. After you can sort them according to different criteria.
Hammer Price
Records are from 2011 to date and the realised sale prices show the the buyer's premium and the hammer price in USD.
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Link & pictures
We give all the diamond and gemstone details with a direct link to the item picture and all the available sale information
Prices items information
On ourdatabase you wil find : hammer price and sold price with buyer premium, sold price per carat and auction estimate.
More then prices
You’ll have acess to: sale date, auction house name, item type, shape, carat colour grade, clarity grade, GIA certificate number and relevant notes
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Innovative and fully responsive Multiple and complex filter conditions


Important and rare Gemstones


Filter Field
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The best tool for Knowing the real price for important gems

Advanced crossed filter
Comprehensive with all useful and necessary data.
Auction results from 2011 to today
+3000 new data add evey year.
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knowing the histocirity of the market help your business

compare , study the results, check the location.
Determine the average price
it will help you better understand how much to buy or how much to sell.
Discover the exceptions
it will protect you from sales anomalies that could lead you into evaluation errors.


Why Choose Gemmoprice?

The importance of knowing the price
Organizes and catalogs all live auction sales for single stone jewellery by the top five auction houses in the world in comprehensive and easy to sort databases. These sale prices cannot be ignored when valuing high-end jewellery, when making diamonds investments or when buying or selling important jewels.
Open market value
The definition of Open Market Value reads: The price of goods and services when not controlled by cartels or government policies, but by the force of demand and supply. This is what auction sales represent.
The most important Gemstones
We catalog the sales of important colourless diamonds rubies,sapphires in every type and colors, esmeralds jade , spinels alexandrites,paraiba and other tourmaline.
Usefull for your work
if you work in an auction house,if you are a valuer,a collector, a jeweler or simply an investor, this tool is indispensable

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The words from these guys are pure pleasure.

We Care About Our Customers

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Kehan Li
FIRV FJVA FGA DGA FNAJ PJValDip Independent Gemmologist and Jewellery Valuer N.A.J. Institute Registered Valuer No. FIRV93710
A highly comprehensive and well organized databases with a very important collection of data that I cannot do without for my work.
Martin Fuller
Martin Fuller
Jewellery appraiser McLean, Virginia - USA
I am very involved with both the National Association of Jewelry Appraisers and the American Society of Appraisers, and I believe your databases may help me do a better job of appraising.
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David Atlas
GG(GIA),CSM(NAJA) Pennsylvania - Delaware - Maryland U.S.A.
The Spreadsheets are a very reasonably priced addition in accessing the markets rapidly and in complete detail