Jewelry, Gems, & Minerals/Ring



I was given a ring by my grandmother.
It looks similiar to an anniversary ring.
Gold in color, 4 stones(diamonds?) across,
With the inscription" korea g-7?
Could you possibly enlighten me, as to what this means?
   Thank you for your time.

Dear Shirley,

Jewelry items imported into the USA need to be marked with metal quality in the same way other jewelry sold in the USA is marked. In other words, 14k could be marked 14k or the numerical equivalent mark which is 585.  18k is 18k or 750.   The g-7 means nothing to me.  If the ring was purchased in Korea, marking would need to be checked against legally accepted markings used in Korea. I do not have information on what Korean standards require for hallmarks. A jeweler should be able to tell you if the metal is gold and if the stones are indeed diamonds.  Sorry, wish I could help more.

God Bless and Peace.  Thomas.

Jewelry, Gems, & Minerals

All Answers

Answers by Expert:

Ask Experts




Have a question about jewelry repair or working with precious metal jewelry and gemstones? For many years up to December 31, 2010, I was a working professional bench jeweler, involved everyday with setting stones in mountings, designing and making jewelry, repairing and limited custom manufacture. If you work with jewelry as a hobby or as a profession, I might be able to help. I deal with the retail business, not mass production. Ask privately if you wish. See the box for that: It keeps your question between us. Please DO NOT ask MAKER'S MARKS, but metal quality marks are fine to ask. Please DO NOT ask diamond prices. See a gemologist for that.


I have extensive experience in design, service and making of jewelry. I deal mostly with precious metals and gemstones but work with many materials as needed and usable to create an artistic design. My experience also includes freelance photography and photographer of jewelry and similar items for a former employer and individuals. Design of custom items requires reading the desires of the client and being clear on what can be done within that framework...then fulfilling the transition of idea to reality. Effective communications is essential in a working designer/producer and customer relationship.

Education is English/Physics! Started in human resources, to advertising, to, what a road. I have had formal training in jewelry work and many shared experiences with top grade jewelers. We just never know were we will go or be. Follow your best, your dreams, with some discretion! Don't let the work tear up your body along the way as it has mine.

©2017 All rights reserved.