I've seen a number of people ask in the past how much an 1/8th looks like, or if their buds look dank, and stuff like that. so I put together a little picture guide on roughly how much and how good the different types and prices of weed looks like.
Gram
Grams are the smallest amount a dealer will sell. Grams are a small amount of weed and frequent users will typically only purchase grams of particularly high quality marijuana. If you ask for a gram of low quality marijuana, the dealer will know that you are a novice and may rip you off or overcharge you.
1/8th
An eighth, a cut, or a slice of marijuana is a very commonly purchased amount. Prices range from $20-$60. It is essentially equal to 3.5 grams.
1/4th
A fourth, quarter or quad, or two slices. This is another commonly purchased amount usually used by more frequent smokers. A fourth is two cuts and it can last weekend smokers around a month or two. Note! Be careful because sometimes 'quarter' can be used to refer to a quarter-pound of marijuana.
Ounce
Ounces or O's are usually for frequent users and multiple users. An infrequent smoker will not be able to smoke it all before it starts going bad. Ounces can last a smoker a month or two. Ounces can range anywhere from $150 to $300 depending on quality.
Dimebags and twenty sacks
Sometimes a dealer will sell a "dimebag" or a "twenty-sac." These terms refer to price, not quantity. Depending on quality, these may contain more or less than a gram. A dimebag costs $10 and a twenty-sac costs $20.
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Now we're going to go over quality of marijuana. The price of various amounts can vary greatly depending on the quality of the marijuana. There are a number of different strains of marijuana and countless names associated with each strain. The price you will pay depends mostly on the quantity and quality. There are a number of other factors that you cannot control that will also affect the price. These include availability, location, season, and reputation. These factors are often interrelated. The availability of weed depends sometimes on the season. In the winter, for instance, marijuana often increases in price. At times, especially in larger cities, large drug busts lower supplies of marijuana and can cause price spikes. Follow the news and know what to expect. The location is also important. In areas where marijuana laws are heavily enforced, it can be more expensive than in areas with relaxed laws. Look into the punishments for dealing drugs and consider that when purchasing. One of the most important factors is your own reputation in the drug scene.
Low Quality
Low quality weed is often referred to as schwag or dirt. Lows are typically not sold in suburban areas and are only available in large quantities in the city. Schwag is brown in color, very dry, and contains a lot of seeds. Stereotypically, schwag comes from Mexico, but that is not to say that all Mexican weed is low quality. The smell of schwag is not very distinctive. Avoid schwag as a large amount is needed to achieve any effect and the highs are less than satisfying.
Middle Quality
Mids or midis are the most readily available quality of marijuana. There are typically no subdivisions of mids. Mids are typically not too dry and flaky but rather come in relatively small buds of moderate moisture. The smell of mids is mild and the highs are distinctive. Mids are a favorite among habitual smokers. They have no distinct origin.
Upper Mids, Higher Quality Mids
High-mids come in a number of varieties. They often look similar to mids, but have more distinctive red or white hairs. Look for small THC crystals on the surface of the buds. The most common high-mids are beasters, or BC weed (from British Columbia).
High Quality
High quality marijuana is often called nugget or nugs, but nugget more accurately refers to the chunking of marijuana that appears in all forms except schwag. Headies are the most commonly encountered high-quality marijuana. They are called headies, because they produce a characteristic "head-high" rather than the lower-body highs of other marijuana strains.
Dank
Occasionally smokers encounter very high quality marijuana. Fire, bomb, or dank marijuana typically fetches a high price-tag and has a name. Dank marijuana strains exhibit an extremely strong smell and are very sticky to the touch. Nugget size is often rather large. Some exotic marijuana strains are AK-47, White Widow, Kush, Haze and Maui Wauwie.
I hope this can help anyone. If you think I left anything out or incorrectly stated something, let me know and I'll fix 'er up.