Thousands have flocked to a hillside in South Africa's KwaZulu-Natal province hoping to find diamonds, after a cattle herder unearthed a handful of unidentified crystal-like pebbles a few days ago in the outskirts of KwaHlathi village, more than 300 kilometers (186 miles) southeast of Johannesburg. News of the finding spread fast, triggering a rush to the site despite messages of caution by the government warning the stones could be worthless.