Antwerp in Belgium, tel aviv in Israel, New York in the United States, mumbai in India are known as the world's four diamond processing centers.
Antwerp is known as the "city of diamonds," and 80% of its residents work in diamonds and related industries.The Antwerp cut and ground diamonds are highly refined and exquisite, hence the name "Antwerp cut" or "standard diamond cut" is highly regarded.
Tel aviv has a long history of diamond processing and is one of the most famous diamond cutting and grinding sites in modern times, especially for its fancy cutting workers.
New York is the financial and trade center of the world, where many famous big jewelers gather. Due to the high human resources in New York, large diamonds over 3 carats are generally processed.
Mumbai, India is a new diamond processing center in recent years, but most of India's diamonds are about 0.20 carats of small diamonds, poor quality, more general cutting and grinding technology.
The world's four largest diamond processing centers are:
1. Small particle diamond processing center -- mumbai, India;
2. Large particle diamond processing center -- New York, USA;
3. Exquisite diamond processing city -- Antwerp, Belgium;
Tel aviv, Israel.
The five largest gem processing centers in the world are:
1. World gem city -- edar oberstein, Germany.
2. Emerald rough processing city -- jaipur, India.
Sapphire city -- Bangkok, Thailand.
4. Jadeite and "after four Kings" (refer to diamond, ruby, sapphire, emerald and pearl) processing center -- Hong Kong.
5. Midrange and low-grade stone processing city -- jiafu, Japan.
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