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دليل الأحجار الكريمة الملونة - اكتشف الأحجار الكريمة في 77 دايموندز

Responsible Gemstone SourcingIndividual CertificationHigh-Quality Photographs and VisualsThe tradition of gemstone mining has existed as long as civilisation itself. Over the centuries, it has evolved into a thriving industry, spanning six continents and 47 countries. The activity supports the livelihoods of many individuals: around 75% to 80% of the world’s gemstones come from artisanal small-scale mining, an activit在77diamonds上