417 - 10K gold
500 - 12K gold
585 - 14K gold
666 - 16K gold (gold teeth and fillings)
750 - 18K gold
792 - 19K gold (used in Portugal)
833 - 20K
916 - 22k gold
999 - 24K gold
22 carat gold
920 is 92.0% Gold or 22K Gold.
that it is 22kt gold
TJ is probably the initials of the jeweler who made the item. 585 = 14K Gold. European jewelers use the metric system for marking gold content. 375 is 37.5% Gold or 9K 416 is 41.6% Gold or 10K 585 is 58.5% Gold or 14K 750 is 75% Gold or 18K 919 or 920 is 91.9% Gold or 22K
If you mean 9/20 as a decimal then it is 0.45
80% of 920 = 80% * 920 = 0.8 * 920 = 736
10 percent of 920 = 92 10% of 920 = 10% * 920 = 10%/100% * 920 = 92
920
920
If you mean number its 920-928-3717
920
920