CREATE TABLE table_62327 ("Month" TEXT, "15th- 20th century" TEXT, "U.S.  ( 1912 ) " TEXT, "U.S.  ( 2013 ) " TEXT, "Britain  ( 2013 ) " TEXT, "Hindu" TEXT)

What was Britain's (2013) birthstone when the U.S (2013) birthstone was ruby?
SELECT "Britain (2013)" FROM table_62327 WHERE "U.S. (2013)" = 'ruby'
SELECT "Britain (2013)" FROM "table_62327" WHERE "U.S. (2013)" = 'ruby'