Jewelry, Gems, & Minerals/Unknown ring


Ring 1
Ring 1  

Ring 2
Ring 2  
I'm afraid I know nothing about gems and metals in jewlery. This ring could be very well made out of tin for all I know, but I would really like to know more about it.

It is made of four small greenish gems, which are surrounded by four clusters of small clear gems.
The marks on the inside of ring itself include the letters DIA, a set of scales with the number 375, 375 on its own, and an anchor. Excuse my lack of basic jewlery knowledge but I would love to know what all of this means.

I don't expect it to be anything special, but I'm curious about the materials it is made from. My apologies for the poor quality of the images and lack of details but I would love to hear any information you could give me

Many thanks, Karen


You have a 9 karat gold ring. I suspect the green stones are commercial grade emeralds, I cannot possibly say what the clear gems might be.

How do I know this?  The stampings are part of the United Kingdom system of marking precious metals. 375 is the numerical equivalent of 9 karat.  0.375 x 24k( pure gold) = 9.  That is the math part of it. The UK is one of very few places recognizing and producing 9 karat gold. The hallmarking system is very revealing, sometimes having a letter which helps identify date of marking.  Jewelry and sterling tableware have been hallmarked in the UK for many, many years.

SCALES---the scales are a "control mark", showing generally with in the balance cups information on the quality of metal. Look in the chart on this link for scales.

Karen, there you are!  God Bless and Peace.  Thomas.  Enjoy the ring..afterall, it is gold.

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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.

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