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Jewelry Maker's Mark Database

Welcome to Heritage's extensive database of designer jewelry marks.

A Maker's Mark is a unique stamp placed on jewelry and watches to ensure the authenticity of the manufacturer. These stamps are typically made up of the manufacturers initials, name, or another unique representative symbol. Identifying this mark is the first step in determining the value of a piece of jewelry. In addition to Maker's Marks, some countries require hallmarks, which are given by the country where manufacturing took place. Hallmarks can offer further information about the place of origin, date of manufacture, and metal content.

Search by designer's name.

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M. Gérard

M. Gérard maker's mark

M. Waslikoff & Sons

M. Waslikoff & Sons maker's mark

Maramenos & Pateras

Maramenos & Pateras maker's mark Maramenos & Pateras maker's mark

Marcel Boucher

Marcel Boucher maker's mark

Marchak

Marchak maker's mark

Marco Bicego

Marco Bicego maker's mark

Marcus & Co.

Marcus & Co. maker's mark Marcus & Co. maker's mark

Margot Mckinney

Margot Mckinney maker's mark

Marianne Ostier

Marianne Ostier maker's mark Marianne Ostier maker's mark

Marilyn Cooperman

Marilyn Cooperman maker's mark Marilyn Cooperman maker's mark

Marina B.

Marina B. maker's mark Marina B. maker's mark

Mariquita Masterson

Mariquita Masterson maker's mark

Marlene Stowe

Marlene Stowe maker's mark

Marsh & Co.

Martin Flyer

Martin Flyer maker's mark Martin Flyer maker's mark

Marya Dabrowski

Marya Dabrowski maker's mark

Masriera

Masriera maker's mark Masriera maker's mark

Mattioli

Mattioli maker's mark

Mauboussin

Mauboussin maker's mark Mauboussin maker's mark

Mayor's

Mayor's maker's mark

MAZ

MAZ maker's mark

McTeigue

McTeigue maker's mark

Meira T

Meira T maker's mark

Mermod & Jaccard

Mermod & Jaccard maker's mark

Michael Abraham

Michael Abraham maker's mark

Michael Angelo Pilla

Michael B

Michael B maker's mark Michael B maker's mark

Michael Beaudry

Michael Beaudry maker's mark Michael Beaudry maker's mark

Michael Bondanza

Michael Bondanza maker's mark Michael Bondanza maker's mark

Michael Christoff

Michael Christoff maker's mark

Michael Good

Michalis

Michalis maker's mark Michalis maker's mark

Michele della Valle

Michele Delville

Michele Delville maker's mark

Miiori

Miiori maker's mark

Mikimoto

Mikimoto maker's mark Mikimoto maker's mark

Mimi Favre

Mimi Favre maker's mark

Mimi So

Mimi So maker's mark

Ming's

Ming's maker's mark

Miseno

Miseno maker's mark Miseno maker's mark

Mish NY

Mish NY maker's mark

Moira

Moira maker's mark

Monica Rich Kosann

Monica Rich Kosann maker's mark

Movado

Movado maker's mark Movado maker's mark
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Learn More about Gold Jewelry Maker's Stamps

What is a maker’s stamp on jewelry?
A maker's stamp is another term for maker's mark. The mark is stamped on the jewelry, and there may be other stamps on the jewelry also.
What do stamps on gold jewelry mean?
Besides the maker's mark, there is also a gold purity mark showing the percentage of pure gold in the piece. For example, "14K" may also be represented as "585", meaning it is 58.5% (14/24) pure gold. In the US, jewelers have been required to stamp a purity mark on their pieces since 1906, and in 1961 the US required a maker's mark.
What are purity stamps on gold jewelry?
  • 417 - 10K = 41.7% gold
  • 585 - 14k = 58.5% gold
  • 750 - 18K = 75% gold
  • 917 - 22K = 91.7% gold
  • 999 - 24K = 99.9% gold
What are jewelry hallmarks?
A true hallmark is a guarantee of an independent body or authority that the contents of the noble metal are true. Hallmarks vary by country. In some nations, such as the UK, the hallmark is made up of several stamps including the type of metal, the maker's mark and the year of the marking.