how can i convert my kdm gold jewellary to hallmark jewellary
Yes can be white Gold hallmark in gold metal alloys Ring.
hallmark rate
220 is not a gold hallmark. The lowest number that is used as a gold hallmark is 333 (meaning 33.3% gold content, which is 8 carat, the lowest gold carat). 220 is actually the hallmark for bronze, which is a copper alloy called "Alloy 220" (or sometimes sold as "commercial bronze"), not gold.
916 today's hallmark gold rate in kolkata
what is 275 gold hallmark
Yes
It should be stamped with a "hallmark." A hallmark for silver should be "925." This indicates 92.5% pure sterling silver. Another hallmark for silver could be "STERLING". A U.S. hallmark for gold would be 10K or 14K or 18K indicating the gold content. Pure 100% gold would be 24K; 10K is 41.67% gold; 14K is 58.33% gold; 18K is 75% gold.
it's a 9K gold
is AJ a gold mark
Hallmark 875 = 21 karats (karat is a unit of measurement of gold to an alloy - 24 karat is pure gold).
The Hallmark, Gilbert Marks....london 1861- 1905