Pre-Auction Analysis: 2016, Sotheby’s Hong Kong

By The FCRF Team | 02.10.16
Pre-Auction Analysis: 2016, Sotheby’s Hong Kong

Sotheby’s Hong Kong

Our pre-auction analysis focuses on visual elements that are not expressed on the GIA report, such as “inner-grade”, “undertone” and “color dispersion”. We use simple grades 1, 2, 3, 4 and 4+ to evaluate these features. It is often difficult to identify such characteristics when viewing stones in an auction catalogue.

We are delighted to see that our readers are embracing the 1-4+ grading system.


This pre-auction analysis focuses on two important items from the upcoming Sotheby’s sale in Hong-Kong. Please note that all photos were taken with an iPhone 6.

Lot 1704 10.81 carat fancy vivid yellow oval, vs2.

Catalog estimate:  $100,000 to $140,000 per carat


It is not very common to see large vivid yellow diamonds in ...

Enter your details to read this article for free
All fields are required.
People who read this article, also read:
FCRF Insights
My Fancy Color Diamond of the Decade
Ephraim Zion, Dehres “One of the most beautiful diamonds that I’ve seen during the last decade is a 1.10 ct cushion fancy vivid green, with the deepest and rarest color. The most obvious characteristic of this colored diamond is its saturation and brightness. To find diamonds in such a unique and vibrant green color is […]
Research & Studies
The Next Era of Fancy Color Diamond Supply
Secondhand market takes the lead over mining  Over the last decade, traditional mining has failed to satisfy the market demand for exceptional Fancy Color Diamonds. At the same time, following the natural succession of generations, the pre-owned market for rare Fancy Color Diamonds seems to be taking the lead. The low volume of exotic, unearthed […]
FCRF Insights
A blocked Stone Report
A GIA report with a mixed format was sent to the FCRF by one of our members. We were asked to clarify this interesting grid, as the GIA doesn’t attach an explanation for these rarely seen reports.
x close

To continue reading this article


Shopping Cart

You cart is empty

Apply for Membership

Become a part of our community and get unlimited access to all of our innovative Tools and Articles

The FCRF App is now available for
Download Button
Continue To Website