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RESEARCHING COSTUME JEWELRY
originally created and published by Dotty Stringfield on IllusionJewels.com

Jewelry History – Jewelry Research – Jewelry Marks – Jewelry Signatures – Jewelry Articles – Jewelry Galleries

COSTUME JEWELRY MARKS – I*

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I

Ian St. Gielar

• Mark:   IAN St. GIELAR – early signature, about 1989.
• Mark: Signature on jewelry from Ian Gielar Studio before his death was “Ian St. Gielar” — see above
• Dates: He designed jewelry from at least 1989 until his death in 2007
• Founded: Ian St. Gielar
• Location: Hollywood, Florida
• Notes: Went to work for Stanley Hagler in 1989
• Notes: Ian died in 2007; his wife Valentina is continuing his work under the name “Ian Gielar Studio.”

I J in a shield — Halian Jewelers, Inc., NY

• Mark:        since 1962   Courtesy Plenty O’ Jewels.

IMPACT — See PISCITELLI
IMPERIAL BOUQUET — See CORO
IMPERIAL PEARL — founded by Joseph Gladstone in 1917

• Mark:   IPS     Courtesy Glitz & Glitter Boutique
• Mark:   MARSLIEU
• Mark:   Marslieu Sterling Pat. Pend.   Photo courtesy Erik Yang.
• Became Imperial Pearl Syndicate in 1941.
• Sold to Sidney Weiss in 1969, who sold it to Waltham Watch Co. in 1971.
• In 1977 sold to The Bazar Group.
• In June 1995 Imperial Pearl Syndicate was merged with Pearls by Deltah, Inc. to become Imperial-Deltah, Inc.

INDIVIDUALITY JEWELS

• Mark:   “Individuality Jewelry” seen on ruffle leaf enameled necklace   

INGEBORG-SANT ANGELO — See JOSEPH MEYER
INTERNATIONAL HARVESTER

• 
• Mark:      Courtesy Jan Gaughan
• Mark is often confused with Harry Iskin.

IN-VEST-MENTS

• Mark: IN-VEST-MENTS — 1992   Photo courtesy Linda Lange
• Mark: IN-VEST-MENTS — 1992; seen inside a bracelet presentation box. Photo courtesy RCJ
• Owner: Dillard’s Inc.

IPS — See IMPERIAL PEARL
ISKIN, HARRY — Philadelphia, PA — founded c. 1930

• Marks:        Photo courtesy Luda Tovey.
• Mark:    H over I and Ster.      Courtesy Laura Libio.
• Mark:   ISKIN PAT. APP.      Courtesy Carolyn Davis.
• Mark:   Large H over I in a circle with Iskin Jewelry
• Mark:   Letter “H” super-imposed over letter “I” on paper hangtag
• Was called Iskin Manufacturing Co. — c. 1938; rented additional business space in Manhattan, NY, in 1938.
• Filed for bankruptcy in 1953 and stock, supplies, machinery, and equipment were auctioned off.
• Much of this information courtesy Carolyn Davis. Read Carolyn’s article on Harry Iskin.
• Mark is often confused with International Harvester.

BIBLIOGRAPHY

PAT SEAL: research files
DOTTY STRINGFIELD: research files
BOBYE SYVERSON: research files.
A TRIBUTE TO AMERICA by Carla and Roberto Brunialti
AMERICAN COSTUME JEWELRY by Carla and Roberto Brunialti
AMERICAN JEWELRY MANUFACTURERS by Dorothy T. Rainwater
COLLECTIBLE COSTUME JEWELRY by Cherri Simonds
COLLECTING COSTUME JEWELRY 101 By Julia Carroll
COLLECTING COSTUME JEWELRY 202 By Julia Carroll
COLLECTING RHINESTONE COLORED JEWELRY by Maryanne Dolan
COPPER ART JEWELRY by Burkholz and Kaplan
COSTUME JEWELRY A PRACTICAL HANDBOOK AND GUIDE by Fred Rezazadeh
COSTUME JEWELRY (2nd Ed.) by Harrice Simons Miller
EUROPEAN DESIGNER JEWELRY by Ginger Moro
INSIDE THE JEWELRY BOX By Ann Pitman
LUCILLE TEMPESTA: owner-publisher of the Vintage Fashion & Costume Jewelry Magazine
MASTERPIECES OF COSTUME JEWELRY by Ball and Torem
MID-CENTURY PLASTIC JEWELRY By Susan Klein
MIRIAM HASKELL JEWELRY by Cathy Gordon and Sheila Pamfiloff
OLD JEWELRY by Jeanenne Bell
WARMAN’S JEWELRY 2nd Ed. by Christie Romero
WARMAN’S JEWELRY 3rd Ed. by Christie Romero

*DISCLAIMER: As in the past, we make every effort to ensure all information contained in the RCJ pages is accurate. However, errors can occur. Neither the prior owner of RCJ, CJCI or its representatives are responsible for your use of these resources.

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