Data used here came from the Darden Case Study: "Sarah Gets a Diamond" (UVA-QA-0702). <\p>
Diamonds are primarily based on four criteria known as the “four Cs”: cut, color, clarity, and carat weight. In addition to these factors, other less-known qualifiers (e.g., fluorescence, polish, and symmetry) marginally influence the value of the stone.
File descriptions
train.csv
- the training set of 6000 rows and 9 columns
test.csv
- the test set of 3142 rows and 9 columns. The final column of 'price' has all NA
Submission.csv
- a sample submission file in the correct format
Data fields
ID
- a unique id given to each diamond
Carat Weight
- size of the diamond.
Cut
- diamond cut ratings, in ascending order, are: poor, fair, good, very good, ideal, and signature ideal
Color
- diamonds are graded on a letter scale from Z (noticeable color) to D (absolutely colorless)
Clarity
Gems free of blemishes are known to be FL (flawless), followed by IF (internally flawless), VVS1 and VVS2 (very, very slight inclusions), VS1 and VS2 (very slight inclusions), SI1 and SI2 (slight inclusions), and I1, I2, and I3
Polish
- graded using G (good), VG (very good), and EX (excellent) categories.
Symmetry
- graded using G (good), VG (very good), and EX (excellent) categories.
Report
- graded using G (good), VG (very good),  EX (excellent) and ID (ideal) categories.
Price
the price of the diamonds in USD.