The Royal Mint does not produce 18 carat gold coins. The standard from 1816 to present day is 22 carat.
VICTORIA DEI GRATIA tells me who the queen is, it tells me nothing about the coin. Whatever the coin is, if it was minted in 1854, it was probably minted at the Royal Mint in London.
Please check your coin and submit a new question including the denomination of the coin. Queen Victoria died in 1901.
1901 Victoria dei gralla Regina.what's it worth?
I found a Victoria DEI Gratia coin1888 FID: Def: on back looks like four shields with three lions on two of them and a signal lion one and a harp on other what is it ? Front is very good condition, back has two spots where it was stuck to another piece of coin token and metal.
...There is no such coin as "Dei Gratia" which translates from Latin to "By The Grace of God". The coin you are referring to seems to be a British coin or one of Britain's dominions such as Canada because most of them have the words "Dei Gratia" or some abbreviation of it on the coin. If it is a British, Canadian or other British dominion coin, it will have a picture of Queen Victoria on the front. The reverse may or may not give the denomination depending on the coin, but with searching, you should be able to find the design that matches your coin and find out the denomination. Then repost a question including the country or origin and the denomination.
It wouldn't say Victoria and be dated 1909 because Victoria died in 1901. Also the motto is on ALL British coins so it doesn't help ID anything. Please post a new question with the coin's date and denomination.
If the coin is as you describe, and has VICTORIA DEI GRATIA with no other wording and the "young bust" with the year below it, your coin is very possibly a Halfcrown dating between 1841 to 1864. The faint hints of a circular pattern is probably the remnants of what was a fairly ornate crowned shield. If your coin is as worn as you suggest, it will not be worth much. A reputable coin dealer will be able to assess your coin more accurately.
How much would it be worth for this coin...1777 carolus 111 dei gratia silver spanish coin
Given that it has no date, perhaps some sort of model or medal or token. The correct latin is definitely "Dei Gratia".
That inscription was used on all British coins of the period. You need to enter a new question and provide the coin's denomination, or a description including its design and size.
USD10k
Please post a new, separate question with the coin's date and country of origin. Without that information it's not possible to provide an estimated value.