Institutional Colored Gemstone Intelligence

The Expert Eye for Fine Gemstone Valuation

Instant, algorithm-backed appraisal benchmarks for rubies, sapphires, emeralds, spinels, and Paraiba tourmalines. Combining high-resolution computer vision, laboratory certificate OCR, and live trade data.

RUBY · BURMA CONFIDENCE 94%
3.42 ct · Natural (Unheated)
$48,500 – $62,000
● Pigeon's Blood ● GRS Certified ● Eye Clean
Bangkok Dealer Trade Benchmark
$24,200 – $31,000 USD
Based on wholesale auction comps & Chanthaburi trades

Coverage Across Tier-1 Colored Gemstones

Built with deep domain expertise to respect individual gemological parameters, origin premiums, and treatment nuances.

Ruby (Burma, Mozambique)
Sapphire (Ceylon, Burma, Kashmir)
Emerald (Colombia, Zambia)
Paraiba Tourmaline (Brazil, Mozambique)
Spinel (Tanzania, Burma, Mahenge)

Institutional Features Built for Collectors & Jewelers

A complete appraisal dossier in seconds, without leaving your camera roll.

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Optical Pre-Screening

Automatic image quality validation. Our vision pipeline checks focus, lighting exposure, background noise, and warns you if stone color conflicts with declared mineral species.

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Multi-Lab Certificate OCR

Instantly scan physical lab reports from GRS, GIA, Gübelin, SSEF, Lotus, and IGI. Automatically extracts carat weight, treatments, origin, and prestigious trade color names like "Royal Blue" and "Muzo Green".

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Retail vs. Dealer Pricing

Gain transparency across international markets. View standard retail customer ranges alongside Bangkok dealer wholesale benchmarks and auction expectations.

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Encrypted Stone Vault

All evaluated stones, zoomable high-resolution imagery, and certificates are securely encrypted in your personal portfolio with live collection revaluation.

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Multi-Currency Engine

Seamlessly view and export valuations in USD, EUR, GBP, AED, CNY, or THB with auto-updated real-time conversion rates.

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Exportable Dossiers

Generate crisp, high-resolution 3x PNG appraisal cards ready for instant WhatsApp, iMessage, or AirDrop sharing with clients and partners.

Our Valuation Methodology

Strict gemological discipline combined with global market transaction evidence.

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1. Objective Visual Inspection

Computer vision inspects hue saturation, tone depth, crystal transparency, brilliance return, and detects optical windowing or dark extinction zones.

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2. Strict Non-Inference Rule

Geographic origin and thermal/resin treatment status are NEVER guessed from photos alone. They are governed strictly by verified certificates or declared user parameters.

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3. Market Benchmark Integration

Our algorithms compare stone parameters against historical auction sales (Sotheby's, Christie's, Bonhams) and active dealer trading benchmarks from Bangkok, Geneva, and New York.