In different countries you learn it at different grades. Your question needs to specify which country - or even region - your question is about.
Diamonds are graded according to their cut, clarity, carat weight and colour. You can read more about each, below.
The 1884-S Morgan is a common date/mint coin in the circulated grades. But in the Mint State grades, it becomes a "Conditional Rarity" and do have much higher values.A certified MS-63 example of this coin currently has a market value of $38,000.00 to $40,000.00.
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I think you mean 1000 gram ingots, not grains. That would be 100,000 grams of silver, or 3,215.07 troy ounces (oz t) in silver mass. Silver, gold and precious metals are always weighed in Troy ounces, which are different from the ordinary ounce.
Solder is manufactured in hundreds of different grades and compositions for thousands of different applications. Solder that might be described as "Silver solder" is most commonly commercially manufactured in about 50 different compositions with silver contents of up to 40% and is priced accordingly. Silver solder is often used in jewellery making and repair, engineering and many electrical manufacturing processes.
Dont know yet
July 8, 2009 The 1884 Morgan silver dollar was minted at 4 different mints and the value of each different mintmarked coin varies greatly as the grade of the coin gets higher. It starts at about $18 in lower circulated grades and soars to $500,000 in the upper uncirculated grades. With this in mind, you can see that it is important to determine the mintmark before any estimate of value can be given.
Many Grades
There is many online articles to read about the different grades of dv cameras. Such as http://ezinearticles.com/?Grades-of-Video-Cameras-Compared&id=4042951 that can help you in comparing different grades of cameras.
The three grades (when used in jewellery making) are: 'Easy', 'Medium' and 'Hard'. These refer to the temperature that the solder melts - 'Hard' is the highest, 'Easy' is the lowest. The different grades allow a joint to be soldered, next to an existing joint. Thus you would normally use 'hard' first, then 'medium', and finally 'easy'.
925 Jewlery is silver and jewlers do not put diamonds on silver. Diamonds need to be set with gold or platinum. There are various karat classifications of gold (10k, 12k, etc) the different grades of gold determine the quality and "softness" of the gold.
July 5, 2009 Sterling silver must have a silver content of 92.5%. The 1944 US silver Washington Quarter has a silver content of 90%. This quarter in circulated condition has a value from about $3.50 to $12 depending upon the actual condition of the coin. In uncirculated condition its value ranges from about $14 in the lower grades to about $75 in the better grades of uncirculated.
there are different grades of it depending on the roughens
A U.S. silver dollar dated 1892 would be a Morgan dollar. Your description of the reverse as "180 grades" means nothing in numismatic terms. Please post new question.
There are two different grades of clinker. One is finally made into Grade 43 and the other is finally made in Grade 53.
TNT comes in many different grades, A and B the most common. Grading of TNT depends on chemical composition and color.