What was India's role in the ancient diamond trade prior to European exploration?

• A. India had no involvement; diamonds came only from Africa.
• B. India was the original source of many early diamonds and supplied rough and cut stones to ancient civilizations and markets for centuries.
• C. India was primarily a consumer market with no mining activity.
• D. India discovered diamonds in the 19th century and led global production.

Answer: (B)

The main idea this question tests is India's long-standing role as the original source of diamonds and as a major processing and trading hub before Europeans reached the region. Historically, India provided most of the world’s diamonds in ancient and medieval times. Diamonds were mined in Indian deposits and river gravels, especially in regions like Golconda, and Indian traders and craftsmen moved rough and cut stones across long-distance networks to markets in the Middle East, Africa, and beyond. Indian diamond cutting and polishing techniques were highly advanced, so India often supplied both rough stones and finished gems for centuries, shaping early global diamond trade long before European explorers period.

That’s why the option saying India was the source of many early diamonds and supplied rough and cut stones to ancient civilizations and markets for centuries best fits. It contrasts with the other statements: diamonds did not come exclusively from Africa in this pre-European era, India did more than consume diamonds, and India did not discover diamonds in the 19th century or lead global production then.