Put this Jewelry Research banner on your homepage or links page
for the convenience of you and your customers.
Follow the link above for the html code.
The information and images on these pages are original works we created. Written permission is necessary to use any information or pictures from this site in any other publications, written or electronic.
"c." = within ten years before or after a date. Beginning dates are for when the mark was first used, or when it was first seen in ads or articles.
*DISCLAIMER: We try to publish accurate information; however, inaccuracies will occur.
Objects D'Heart -- see Crystal Brands
Oceania see Royal Craftsmen
Mark: Occupied Japan Courtesy Sam and Yvonne Mitchell.
Old Crest see KIRSCHMAN, LEWIS CO., INC. -- c. 1947
Mark: OLEET Photo courtesy Jennifer from Jennifer Lynn's Timeless Jewelry.
OLEG CASSINI -- ee Cassini, Oleg
OLENSKA, CHRYSTYA c. Jan. 1966
Mark: Chrystya Olenska for Hattie Carnegie
Omar, Inc.; New York
Mark: Genie & lamp graphic with "Omar" beneath -- from July, 1946.
ORA --see Ralph Singer Jewelry Co.
ORB -- see Bade, Otto
Orchidee Noire -- see Pierre Bex
Mark: Orena Paris -- 1977 to at least 2005 Photo courtesy Gloria Barnhart
Orientique -- see TRIFARI
ORIGINAL BY ROBERT -- see The Fashioncraft Jewelry Co., Ny, Ny
O.R.I. -- Originalities of New York
Mark: O.R.I. -- 1962 Courtesy Plenty O' Jewels.
Mark: Ornella Made Italy Photo courtesy Debbie Robinson.
OSCAR CHARLIN -- see Charlin, Oscar
Oscar de la Renta -- NY, NY
The following marks have been seen on his jewelry.
Mark: OSCAR hangtag
Some jewelry only marked with plastic Oscar de la Renta price tag
Fashion house founded by Oscar de la Renta in 1965; not sure when he licensed jewelry, but know as early as 1989..
OSTER, MICHAEL -- c. May 1967
OTIS COMPANY, Providence RI c. 1943
Mark: OTIS Photo courtesy Jo-Ann Sturko.
Mark: sterling Otis Courtesy Mary Ann Docktor-Smith
Company was sold in 1970; Mr. Otis died in 1972
OSTBY AND BARTON CO., Providence RI c. 1880
Mark: Bull's eye with arrows pointing to it from either side Courtesy Lilly Vittetow
Our Little Darling -- see CORO
PAT SEAL: research files
DOTTY STRINGFIELD: research files
LUCILLE TEMPESTA: owner-publisher of the Vintage Fashion & Costume Jewelry Magazine
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
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