Global Gemology - Rare Gems & Jewels
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"I" - JEWELER DIRECTORY

Picture
Below is an alphabetized list of jewelry designers and manufacturers, along with photos of their corresponding maker's marks.

Click to enlarge each image.


All photos courtesy of Scott Papper, GG, CMA, RGA, AJP, CSMP, CSSP.

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I


I.B. GOODMAN

Attributed Maker's Mark(s):  "IBG"
Information:  I.B. Goodman was founded in 1937 by I.B. "Buster" Goodman, in Cincinnati, Ohio.  Works primarily in gold, silver and platinum
Jewelry hallmark of I.B. Goodman
I.B. Goodman

INTERNATIONAL GEMOLOGICAL INSTITUTE

Attributed Maker's Mark(s):  "IGI"
Information:  The International Gemological Institute (IGI) is an independent diamond grading lab that was founded in 1975, in Antwerp, Belgium.  
Jewelry hallmark of independent diamond grading lab, IGI - International Gemological Institute
International Gemological Institute

IMPERIAL

Attributed Maker's Mark(s):  "IWI", "IPS", "Imperial"
Information:  Imperial was founded in 1917 by Joseph Gladstone, and was later renamed Imperial Pearl Syndicate in 1941.  Works primarily in gold and silver.
Jewelry hallmark of Imperial Pearl
Imperial
Jewelry hallmark of Imperial Pearl
Imperial

INTERNATIONAL SILVER COMPANY

Attributed Maker's Mark(s):  "International", "IS", "International S. Co."
Information:  The International Silver Company was formed in 1898, in Meriden, Connecticut, by local independent silversmiths.  Worked primarily in sterling silver and silverplate.
Hallmark of International Silver Company
International Silver Company
Hallmark of International Silver Company
International Silver Company

IPPOLITA

Attributed Maker's Mark(s):  "Ippolita"
Information:  Founded in 1999, in New York City, NY by Italian-born designer, Ippolita Rostagno.  Works predominantly in gold and silver.
Jewelry hallmark of Ippolita
Ippolita

IVAN'S JEWELRY

Attributed Maker's Mark(s):  "IVAN'S"
Information:  Ivan's Jewelry was founded in 1967 by Ivan Pace in Pryor County, Oklahoma.  Works primarily in gold and silver.
Jewelry hallmark of Ivan's Jewelry of Pryor County, Oklahoma
Ivan's Jewelry
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  • HOME
  • ABOUT
  • SHOP
  • SERVICES
    • APPRAISALS
    • EXPERT WITNESS
    • SELL YOUR JEWELRY
  • OUR CLIENTS
    • ATTORNEYS
    • ESTATE PLANNING PROFESSIONALS
    • INSURANCE COMPANIES
    • INDEPENDENT JEWELERS
  • GEMOLOGY
    • GEM ENCYCLOPEDIA
    • THE ART OF GEMOLOGY
  • BLOG
  • EDUCATION
    • DIAMOND FACTS
    • JEWELER DIRECTORY
    • JEWELRY PERIODS
    • POCKET WATCHES
    • NATIVE AMERICAN JEWELRY
  • GLOSSARY