"U" - JEWELER DIRECTORY

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

Click to enlarge each image.

Photos courtesy of Scott Papper, GIA GG, AJP, CM (NAJA), Global Gemology & Appraisals

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UGO PICCINI

Hallmark(s):  "Ugo Piccini"
Information:  Founded in 1952 by Ugo Piccini, in Florence, Italy.  They produce their own designs, but also retail many other jewelry and watch brands.  Works primarily in gold.
Jewelry hallmark for Ugo Piccini
Ugo Piccini
ULTIMATE TRADING CORPORATION

Hallmark(s):  "UTC"
Information:  Ultimate Trading Corporation was founded in 1985, in Roseland, New Jersey.  Works primarily in gold and silver.
Jewelry hallmark of Ultimate Trading Corporation, of Roseland, NJ (UTC Stamp)
Ultimate Trading Corporation
UNCAS

Hallmark(s):  "U" with an arrow through it
Information:  Uncas Manufacturing Co. was founded by Vincent Sorrentino in 1911, in Providence, Rhode Island.  Manufacturer of sterling silver and costume jewelry.
Jewelry hallmark of Uncas Manufacturing Co.
Uncas
UNGER BROTHERS
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Hallmark(s):  "UB"
Information:  Unger Bros. was founded in 1872 by Herman Unger, in Newark, New Jersey.  In 1879, three of the five brothers (William, George and Frederick) died, leaving Herman and Eugene to continue the business.  Worked primarily in silver.
Jewelry hallmark of the Unger Brothers (UB Sterling 925 Fine)
Unger Brothers
UNI DAVID-ANDERSEN

Hallmark(s):  "UNI D-A"
Information:  Uni David-Andersen is the great granddaughter of infamous Norwegian gold and silversmith, David Andersen.  In 1959, Uni opened her own workshop.  Worked primarily in silver and gold.
Jewelry hallmark of Norwegian jeweler, Uni David-Andersen
Uni David-Andersen
UNIVERSAL JEWELERS INC.

Hallmark(s):  "UJI"
Information:  Universal Jewelers Inc. was founded in 1973, in Los Angeles, California.  The company has since relocated to Miami, Florida.  Works primarily in gold and silver.
Jewelry hallmark of Universal Jewelers Inc.
Universal Jewelers Inc.
UNO-A-ERRE

Hallmark(s):  "Unoaerre", "1 AR"
Information:  Founded in 1926 by Leopoldo Gori and Carlo Zucchi, making them the 1st registered jewelers of Arezzo, Italy.

UnoAErre was founded in 1925, making them the first registered jeweler of Arrezzo, Italy.
Jewelry hallmark of Uno-a-Erre, the 1st registered jewelers of Arezzo, Italy.
Uno-A-Erre
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