Six men were orchestrated amounted to a “blatant and cynical” tax imprisoned for between 11 years and 20 months.
She persuades the wealthy people to invest in environmental projects in exchange for tax relief, but then using the money to Finance lavish lifestyle, buying a property abroad and luxury holiday.
HM Revenue & Customs, said it could have lost up to Â£107m as a result.
HMRC Simon York said the men showed “complete disregard” for the environmental purposes for which they purport to support.
“These people thought she was the perfect Scam,” he said, adding that the work had begun, to recover the proceeds of their crime.
HMRC said the group, led by “self-proclaimed leader” and scientist Michael Richards, attracted 730 high earners invest in research and development is focused on reforestation of areas of Brazil and China.
The convictions follow a 10-year investigation by HMRC.
Judge Edis said: “It was bare-faced dishonesty and you have to add all losses to the General public, the people who pay their taxes, who were also victims.
“It was total dishonesty, sophisticated planning, and amazing greed, hidden behind a mask of concern for the environment.”
Richards, 55, of Alfriston, East Sussex, and Robert Gold, 49, from Dubai who was described in court as the leader of the “bulldog and the negotiating partner” – were both sentenced to 11 years in prison.
Rodney Whiston-dew, 66, of Greenwich, south-east London, a lawyer and former President of the Rotary Club of London, was imprisoned for 10 years.
Ex-banker and former music-industry executive Evdoros Chrysanthos Demetriou, 78, of Oxford, received six years and Jonathan Anwyl, 44, from Ringmer, East Sussex, described as an environmentalist and business consultant, is the son of retired judge Shirley Anwyl QC, was sentenced to five and a half years in prison.
The five men were all found guilty of cheating, conspiracy of public revenue.
The sixth man Malcolm Gold, 73, from St Albans, admitted cheating the public revenue and was sentenced to 20 months in prison in January 2017.