GemstoneClassificationAI

Scaling industrial R&D with spatial intelligence.

A customized AI research pipeline for high-volume gemstone identification, designed to streamline quality control and preliminary sorting for gemstone mining operations.

Gemstone Classification AI

Project Information

Client

Gems & Minerals Mining Corp

Year

2025

Role

AI R&D Partner

Scope

  • Computer Vision
  • Deep Learning
  • R&D

Overview

Developed a systematic AI framework to automate 68 distinct gemstone classifications, enabling the client to scale their sorting operations and maintain consistent quality standards from the mining site.

The Challenge

The client's sorting department struggled with the slow, manual classification of raw stones. Dependency on human experts limited their ability to process massive extraction volumes and led to quality control bottlenecks.

The Solution

Implemented a pipeline with smart pre-processing (Otsu thresholding) and feature extraction (color histograms, texture analysis). Trained a Random Forest model that outperformed deep learning alternatives for this specific use case.

Technology Stack

Language

  • Python

Vision

  • OpenCV
  • ResNet

ML

  • Random Forest
  • Scikit-learn

Key Impact

Processing time reduced from 175 minutes (human) to under 1 second (AI). Achieved 69.4% accuracy, surpassing expert benchmarks. Scalable to 68 gemstone types.

Methodology Framework

Methodology Framework

RGB Color Space Analysis

RGB Color Space Analysis

HSV Feature Visualisation

HSV Feature Visualisation

Classification Accuracy Boxplot

Classification Accuracy Boxplot

Best System Confusion Matrix

Best System Confusion Matrix

Expert Gemmologist Confusion Matrix

Expert Gemmologist Confusion Matrix

"This system transformed our field operations. It not only saves 99% of screening time for raw stones but also provides the objective classification data we need for industrial scaling."
Director of OperationsGemstone Mining & Export Group

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