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Game of Stones: Tracking conflict diamonds with lasers

How can we be sure the diamonds we buy are not fake or from conflict regions?

from BBC News - Home https://ift.tt/2Xik3A8

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very funny

Putintseva asks umpire to eject spectator over safety fear

World number 33 Yulia Putintseva raises security concerns about a spectator during her first-round match at Wimbledon, asking for them to be...