When Lucho turned 11 he quit school and hawked magazines and sold rags to metal polishers.

FORBES: Magazine Article

The farriers, knife-makers, locksmiths, chain-forgers, nail-makers, helmet-makers, escutcheon-makers, stonemasons and, aforementioned harness-polishers would gather regularly at their guild halls.

FORBES: Did Sir Isaac Newton Invent Social Media?

In Namibia just a few hundred people work as polishers and cutters.

ECONOMIST: The diamond cartel

Graff's wholesale business allows him to cut out the usual middlemen--the brokers, polishers and manufacturers who each take their slice as a rough stone moves up the jewelry chain.

FORBES: Magazine Article

On the manufacturing rung he employs 370 cutters and polishers in South Africa and Mauritius, who handle smaller goods, and 19 master craftsmen in Antwerp and New York, who work on the larger diamonds.

FORBES: King of Bling

There are few skilled workers, the scale of production is small and wage costs are roughly ten times that of India, which dominates the world market and where 900, 000 people work as basic polishers.

ECONOMIST: The diamond cartel

Just ask the harness polishers.

FORBES: Did Sir Isaac Newton Invent Social Media?

Wanted: Diamond polishers in Israel.

FORBES: Lev Leviev

FEATURE-Wanted: Diamond polishers in Israel.

FORBES: Lev Leviev