Pre-Auction Analysis: May 10, 2022, Sotheby’s Geneva – Magnificent Jewels and Noble Jewels

Our Sotheby’s Geneva Pre-Auction Analysis focuses on elements that aren’t visible to the untrained eye. We are describing  important visual elements for those who cannot attend the preview. We discuss characteristics such as: Undertone, Color Dispersion, and Inner-Grade IDU. These visual assets are explained in detail at the bottom of this article.

It is important to note that we analyze and grade Fancy Color Diamonds relative to their GIA grade.

We use grades 1, 2, 3, and 4, with 1 being the lowest grade. Grade “4+” is granted in rare cases and denotes stones with exceptional characteristics. Stones that receive a minimum total IDU score of 9, without a red remark, pass the industry threshold and can be traded easily. Fancy Color Diamonds that are graded 10 or above, (without a quality remark) are usually sought after by high-end jewelers and collectors..

For your convenience, we have added direct links to the GIA reports.

• All images in this article review were taken with an iPhone 13 Pro; no filters were applied.
• All auction valuations are per-carat and listed in US Dollars.

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Disclaimer
This analysis reflects the opinions of the FCRF professional team. It does not constitute a recommendation to buy or not buy a particular diamond. Buyers assume the responsibility to verify any information with the auction house. At times, mistakes can happen in the visual analysis and report placement. Therefore, one should not rely solely on this analysis for buying purposes.

Lot: 381
Description: 15.23 ct, Fancy Intense Orangey-Pink, Heart, VVS1
High Auction Estimation: $374,660 pc
Didn’t reach the minimum.
GIA Report: View

Analysis:
A large pink heart-shaped diamond with a ~15% orange modifier. The facet arrangement on the pavilion matches that of a modern modified cut, while the