Pre-Auction Analysis: April 2017, Sotheby’s Hong-Kong

By The FCRF Team | 03.04.17
Pre-Auction Analysis:  April 2017, Sotheby’s Hong-Kong

Sotheby’s Hong-Kong April 2017

This Sotheby’s Hong Kong pre-auction analysis focuses on visual elements that are not expressed on the GIA report, such as Undertone, Color Dispersion, and Inner-Grade (UDI). We use grades such as 1, 2, 3, and 4 to describe these features. The grade 4+ is used in special cases to describe unusual visual characteristics. Stones with a total score that ranges from 8 to 12 are considered top gems and are suitable for high jewelry. It is often difficult to identify these characteristics when viewing fancy color diamonds only in an auction catalogue, especially when the images are heavily processed. All images in this review were taken with an iPhone 7.

Important note: To all you auction bidders; we strongly recommend downloading the beta version of the new FCRF app and using the auction calculator. The app lets you calculate your bidding price per carat (including the house commission) as you follow the lot, and create your own archive.

Lot No’ 1784

3.13 carat fancy intense blue emerald cut. High catalogue estimation: US$: $1,640,000pc

Price Realized Per Carat- US$ 1,530,625

As the Cullinan mine produces only a very small amount of blue fancy color diamonds every year, any natural blue that comes into the market creates a lot of interest, especially in the intense grade.

The color inner-grade receives a 3, which means it is a solid “intense.”


The article has been sent to your email address. Enjoy!


Read This One Article For Free

Fill out the info and a link will be sent to
you. Your data will be kept safe with us.

All fields are required except for company name.
People who read this article, also read:
FCRF Insights
Pre-Auction Analysis: April 27, 2022, Sotheby’s Hong Kong, The De Beers Cullinan Blue
As most of the industry has been prevented from traveling to Hong Kong during this challenging period, this auction analysis can help those who would like to bid without physically inspecting the goods. For your convenience, we have added a direct link to the GIA report. Lot: 1800 Description: 15.10 ct, Fancy Vivid Blue, Emerald, […]
FCRF Insights
Investment banks serving as a link in the diamond trade-chain between a diamond wholesale source and private clients is not a new practice. However, connecting a mining company directly to private clients has never been done before. Alrosa recently forged a groundbreaking partnership with an investment bank ###truncate### to develop a new platform to benefit […]
FCRF Insights
8 Things Your Client Needs to Know Before Buying a Fancy Color Diamond
Don’t Do 1. Don’t put too much emphasis on Polish, Symmetry and Clarity. These parameters were made first and foremost for colorless diamonds. The value of a fancy color diamond is determined above all by its beauty, quality of color and rarity. Color retention is a top priority when polishing a Fancy Color Diamond while […]
x close

To continue reading this article


Shopping Cart

You cart is empty

Discover The FCRF Tools and Services

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