TrefuGems – Trefuly LTD Reports, Grading & Provenance for Natural Diamonds Purchased in Europe

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Welcome to TrefuGems.com

We are a diamond reporting office in the UK owned by Trefuly LTD

To begin the provenance for a diamond, we create a diamond identification report that starts with an affadavit of purchase. This affadavit begins the provenance for each stone and is included in the client’s report file.

After a diamond has been handed over to TrefuGems, we examine the diamond with an eye loupe and then share the observed details on the diamonds identification report.

More detailed information is taken for each stone and kept on file for our clients. Microscopic inclusions observed at 40x to 100x are documented and photographed but not shared on the internet or made public unless needed by the diamond buyer.

All tests used for the identification process avoid harming the diamond.

Trefu Gems Identification Report Diamonds

Diamond Identification Report

An identification report documents everything visible about a diamond without using destructive testing. Each natural diamond has a colour grade, transparency level, cut style, dimension and vibrancy.

Various inclusions and nicks on a stone may be natural or created by buyers, wholesalers and diamond cutters. Marks that are visible with a 10x loupe display the way a diamond travelled through the diamond world to TrefuGems and are marked on the identification report as a mark added in transit to TrefuGems.

Diamonds that are cut by a gem cutter and then giving directly to a client may not have these industry marks and will require an identification report to start the diamond’s provenance.

About

TrefuGems is where Trefuly LTD shares information about our Diamond Reports. The diamond reports are for natural diamonds purchased through wholesalers and are marked with wholesaler nicks.

Our reports share basic information about our diamonds and begin the formal provenance for our diamonds.

Blog

August 10, 2024August 10, 2024

New Regulations for Travel with Diamonds

On BB Clark’s trip to Antwerp, she found out something interesting at the security check. BB Clark chatted with security and crossed the border with documentary proof of her ownership of her gemstones. The regulation for traveling to Europe with loose diamonds changed in March 2024 and the grace period ends August 31, 2024. Because the …

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August 2, 2024August 2, 2024

Quality Analysis Report – Alternative name for a Diamond Certificate from the 1980s

Trefuly is reviewing older versions of Diamond Courses to see if information in the market has changed dramatically. One change is the name of reports. In the 1980s the certificates were named Quality Analysis Reports by GIA (the course I’m reviewing). The goal of GIA in the 1980s was to standardise the language used for …

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July 10, 2024July 10, 2024

New Provenance Diamond Grading Report

We created a new provenance diamond grading report to add two more pieces of information and now our provenance grading report is a mixed European/American report containing some of the same information offered in the American styled reports. Because of the change, our reports are two pages long with photograph and drawings on one page …

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Impressum

Trefuly LTD is the owner of TrefuGems and all the images on this website. The diamonds shown on the website are not owned by TrefuGems but are owned by Dr. Emmy Horstkamp as her personal assets.

The website uses the photographs for the purpose of sharing information about diamond provenance which is incorporated into the Trefuly LTD project GWJ | Goes with Jeans.

Firmsme is working on POC for GWJ and keeps inventory for investors on Richmond Thames.