The chain, a very good quallity flat belcher chaiin, measures 600 mm, 24 inches long. Stamped 835 only on the bale, and 835 and the maker's mark, FBM, on the chain.
The two parts certainly seem to have been put together originally but the maker of the pendant may not be the maker of the chain. No matter, a stunning piece. 835 is a continental standard of silver, and was perhaps a standard in German more than any other country. The style could certainly be German, and it is almost certainly a vintage piece. Stylistically 1960s or 1970s, although the modernist brutalist pieces were made over much of the second half of the twentieth century.
Very good vintage used condition. Please note that all items listed are used, some vintage and some antique, but all have been worn and the condition will not be as new. The item "Large vintage silver necklace brutalist pendant with rose quartz stone 835 mark" is in sale since Monday, August 23, 2021. This item is in the category "Jewellery & Watches\Fine Jewellery\Fine Necklaces & Pendants\Gemstone". The seller is "the_mirror_cracked" and is located in West Lothian. This item can be shipped worldwide.