All precious metals are checked by local jewellery shop, no matter if any hallmarks on it. All natural materials are also tested.To be honest, I love vintage jewellery also because the better quality and artwork. Here is a beautiful Japanese Ox-Blood red coral that is carved into 3D flower, and set with solid 9K yellow gold. This kind carving is originated in China, but has been quickly adapted and developed by Japanese artist. However, this type craftsmanship is at risk of extinction in both countries. This pendant weights 5.8 gram, size is about 32 x16 x 8.5mm at approximate, it is a quite decent pendant, but not huge piece, kind cute. There is no visible damage or chip or crack on the surface at all, but there is natural growth marks, so please read the description carefully. It is like brand new, never wore, few marks at the edge of the gold, but not noticeable at all. It is not a perfect piece, there is a natural curve can be seen, I believe the artist has carved this flower according the raw coral-stone's original and natural growing curve, please check the last two photos. There are few natural formed tiny pin-point sized hole going through the flower, you can only see them by lift it directly to the sun light, and then moving it slowly, you can see these tiny holds is under some of the flower petals. There are a couple of insect bits at top one corner outside the flower, it is hard to be avoided, as coral is same like other organic semi-precious stones, such as amber, ivory...... It is blood-red color, also a bit deep orange tone according the light change, which is quite normal for high quality Japanese coral. Japanese coral is the best coral in the world, not only for its color, but also for its hardness and tight density, this makes them with unique glossy looking and sometimes even semi-transparent looking, also the idea material for very deep and detailed carving. It will make a wonderful gift for someone special, amber is one of the famous praying and healing stone as well (not really stone though). It is a really bargain as the gold price has been increasing every year, and almost increasing every week now! I will provide more details and photos if you need, also I suggest you check out the size according the ruler. The item "Vintage Natural Japanese Ox-Blood Red Coral Pendant + 9K Yellow Gold" is in sale since Friday, September 11, 2020. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Fine\Retro, Vintage 1930s-1980s\Necklaces & Pendants". The seller is "2010treasurehouse" and is located in LAYTOWN,. This item can be shipped worldwide.