Question
Markings as read on th
Hi Thomas,
This is Mumu from Japan. Thanks for your previous replies. Today I got to ask you something about stone and marking as well. I was roaming around a flea market last Saturday and suddenly found a ring with a big round black stone at middle and 6 small white/colorless glistening stones (3 at each side of the big one). There are some marks inside the ring read as 'PS' '100' and 'N' at one side. And at another side '0.10'. For your better understanding, I took the pictures of the marks and stones came with the ring. Please have the look on the picture attached and let me know your expert opinion on the marks and stones, what do you think about the metal, are the stones precious etc. I am so sorry to ask you many questions. But I hope you would be kind enough to answer these at your convenient.
With sincere thanks.
Mumu
AnswerYou say kindly, "I am so sorry to ask you many questions." Mumu, I am so sorry to be able to only answer partially. This must be understood to be about the best anyone can do with only description and photograph. Normally I would reject even such an interesting subject because providing more than speculation is not possible from this distance from the actual ring.
The markings do not mean anything to me except perhaps for the one on another side, "0.10".
By the way, you have provided excellent macro photos here and the collage of images is wonderful. I would love to see this ring in my hands to examine. As is, I cannot tell if this is costume or made of precious metal, perhaps silver with some patina or oxidation.
The stone may be a plastic material, a hard stone or a pearl. You can likely tell the difference easily in a smooth hard stone and a pearl from the polished texture. A pearl if from the oyster or mussel will provide a gritty feel when moved across a front tooth. Yes, move the gem across a tooth and is the result smooth or gritty in feel? There is no need to do this simple test if you determine by weight and texture the gem is stone. If a simulated pearl or plastic, the movement on the tooth will be smooth.
A pearl of such size would be valuable and would likely be from the Tahitian area of the South Pacific. Akoya pearls in Japan do not normally reach such a size. The color may be natural or dyed if a pearl is suspected. The surface appears in the photo to be too smooth for a pearl but the reflection is pearl-like.
Unless you see obvious signs of worn plated metal on the surface, you will need to have the metal seen by a jeweler for identification if you feel it is worth that cost.
The number "0.10" can refer to a total weight of diamonds, however the stones may be a bit large for that. If the stones are perhaps near 1.5mm diameter each, the total for 6 could be near 0.10 carats total weight.
I would try polishing some of the ring, perhaps inside the band. What color is the metal? Is it a bronze or brass color or a silver color?
Mumu, please do not rate me as low in knowledge on this item or do not rate me at all on the response. I should not even try to answer questions of such difficulty without the item in my hands. Perhaps some of what is said will assist you.
Have a fine day. God Bless. Thomas.
