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Abdelrahman Elaref
All work

Project

Gemstone Price Prediction

Regression model predicting cubic zirconia gemstone prices with 97.8% accuracy from physical attributes.

  • Machine Learning
  • Python
  • Regression
Gemstone Price Prediction model preview

End to end ML project predicting cubic zirconia prices from physical attributes (cut, color, clarity, dimensions). Walks the full pipeline from EDA through feature engineering to model evaluation.

What I did

  • Achieved 97.8% accuracy on the held-out test set using regression with engineered features.
  • Full EDA covering distributions, correlations, and outlier handling to inform modeling choices.
  • Feature engineering for non-linear interactions between physical attributes and price.
  • Model comparison across linear regression, decision trees, and ensemble methods to justify the final choice.

Tools & techniques

  • Python
  • Scikit-learn
  • Pandas
  • NumPy
  • Matplotlib · Seaborn