No. By international standards all silver stamped "sterling silver" is 92.5% silver and 8.5% other metal(s).
989 is a higher silver content than Sterling which is 925 / 1000
To find the amount of silver in sterling silver cutlery, look for a makers mark. If it is present, then the silver is .925 pure.
925 is the metal content for sterling silver. This means it is 92.5% pure sterling silver which is the standard.
All pre-1920 British Sixpences were made from sterling silver (92.5% silver content).
"1303" likely refers to the specific silver content, indicating that the item is made from sterling silver which is 92.5% pure silver. In silver items, you may also see marks such as "925" or "sterling" to signify the same silver content.
The amount of silver in a pair of sterling silver cufflinks can vary depending on the design and size of the cufflinks. Generally, a pair of sterling silver cufflinks can contain around 10-15 grams of silver.
No, it can be relatively expensive if bought new, but it has no long-term intrinsic value like sterling silver does, because the silver content is almost nil.
First off, they are not sterling silver, sterling silver is 92.5% pure silver, most silver US coins are 90% silver and 10% copper, known occasionally as "coin silver". In average circulated condition, the coin is only worth its silver content, at the time of writing, it is about $5.50 in silver content. If it is in mint-state or otherwise very good condition, it might be worth more than just its silver content if you can find a collector.
The mark for sterling silver is 925 which indicates 92.5% silver content.
1,500 grains is 3.42857 oz. Sterling silver is only 92.5% pure silver, so the actual silver content of 1,500 grains of sterling silver is 3.17143 oz (at about $18.50/oz = $58).
Sterling silver contains 92.5% silver, so there are 4,625 grams of silver in 5,000 grams of sterling silver.
To determine if a necklace is sterling silver, look for a marking of “925” on the necklace, which indicates that it is 92.5% silver. You can also use a jewelry testing kit to confirm the silver content. Another way is to check for tarnishing properties, as sterling silver tends to tarnish when exposed to air.