The clasp not mark but tested 24K Solid Pure Gold. Total of weight 0.6gram. Measure 9 x 9MM. It's in very good condition.
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22k Gold Clasp
Marked 24K. Total of weight 1.1grams. Measure 9.4 x 10MM. It's in very good condition.
Vintage Solid PURE 24K Gold M Clasp FOR Bracelet, Necklace, Chain.