It means that 750 parts of every 1000 are pure gold.
In other words it is 75% pure gold and 25 % other metals.
This is usually to make the gold more durable for every day wearing. Pure gold is very soft and wears out relativelty quickly if used all the time.
If the bracelet is 15g gold and 5g silver, then the gold content is 15/20 or 75%. Pure gold is 24 carat, so 75% is 18 carat.
The 750 very well might be an indication of 18 karat gold.
Sure it's not platinum? 75% pure platinum or white gold
926It's 750. 925 is sterling silver. 375 is 9ct Gold
18K means that it is 18 carat gold (75% pure gold).
750 is the fineness of gold per thousand, thus the gold is 18ct/18k (18 carat real gold)
If it has a diamond or diamonds it could be the carat weight or it could be 750 which is 18 k or other wise no real meaning
18 carat gold
According to a Jewlery Co, yes it does mean 18k. They also use a # designation for 14k. I don't know what it is however. These numbered designations are mainly used in France, England and other European countries. They continue as follows: 22 carat ~ 916 18 carat ~ 750 14 carat ~ 585 9 carat ~ 375 Please note: The English, most especially, utilize "carat" in metal purity. Whereas, in the USA we use the word "karat" for metal purity and "carat" in terms of gemstone weight.
750 means 75% puregold the balance of 25% are other metals such as copper and silver. Gold is measured in fractions of 24. As an example Pure gold is 24 parts out of 24 or [24/24=1=100%]. 18 Karat gold (18K) is 18 parts of pure gold out of 24 or 18/24=0.75 or the way it is stamped 750. Pure gold is very soft. The alloy or additives will harden the metal and change the color of the metal.
.999 = 24 carat = 99.9% .916 = 22 carat = 91.6% .750 = 18 carat = 75% .585 = 14 carat = 58% .375 = 9 carat = 37.5% A gold item listed as .575 is 57.5% pure gold. Its worked out thus: 24 carat gold is pure gold.. Therefore .575 or 57.5% = 13.8 carat gold. Its real gold - not gold plated.
The 18k 756 is the hallmark for 18 carat gold although it should have an assay mark with it.