Glass Material Research 
Art Appraisal Resources
AUGUST 29, 2023
The appraiser will assess its condition, size, materials and overall condition. The appraiser will then research the artist, provenance, exhibition history and market trends related to the artwork and similar pieces. It is helpful if you are working with an appraiser who is well versed in the style of work.
WorthPoint
AUGUST 5, 2024
As I’m perusing online jewelry listings, whether shopping or doing research, I sometimes come across things that just aren’t quite right. of collecting, or you don’t mind a good refresher, here are several different types of gray materials you’ll likely run across if you keep thrifting and hitting the fleas for any amount of time.
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WorthPoint
JULY 15, 2024
The findings, materials, and even the designs were unlike what I typically purchased for my collection or my inventory, but amazing nonetheless. A pair of Louis Rousselet earrings with handmade glass beads and cabochons and round wire clipbacks. Most of the glass used in jewelry was not made by the House of Gripoix.
WorthPoint
JULY 29, 2024
Until I was researching to write entries on adornment for the WorthPoint Dictionary , I didn’t realize how extensively—and beautifully—rock crystal was used in fine jewelry, too. Rock Crystal: What It Is and How to Identify It Even though rock crystal may look like glass or lead crystal at first glance, it’s actually colorless quartz.
Artifactual History Appraisal
MAY 6, 2020
GLASS DECORATIVE ITEMS AND TABLEWARE/BARWARE: A. How to photograph so an expert can see: Cut glass versus pressed – hard to see in photos. Shoot a close up of bottom, there, look for these features: Pontil mark, which is where the glass blower would have attached his blow rod. Look for a fraction or number. Provenance Paint?
Buckhead Jewelry Appraisers
NOVEMBER 15, 2023
Professional Appraisal: Seeking a jewelry appraisal from a specialized jewelry appraiser can provide comprehensive details about the jewelry's authenticity, materials used, and value. Materials that could be counterfeit gemstones could be made out of questionable materials like plastic or glass. Some Additional Tips 1.
International Society of Appraisers
MARCH 14, 2025
As appraisers, we are market researchers. Further, these objectives and approaches generally require research in different markets and marketplaces, thus resulting in different value conclusions. What if your item contains intrinsic materials? It recognizes the intrinsic value of materials comprising the original item.
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