The Sapphire Tower was a proposed luxury hotel and condominium skyscraper in Toronto, Ontario, Canada, to be built by developer Harry Stinson.

Scheduled to begin construction in Spring 2007, the previous 90-storey proposal on Temperance Street, which would have stood at 342 metres (1,122 ft), was rejected because of shadow and height concerns.

According to a story in the February 16, 2007-edition of The Globe and Mail, after acquiring the property in 2003, high-profile Toronto developer Harry Stinson toyed with a skyscraper condo-hotel project for about a year.

[5] At issue was the thin shadow that would have been cast by the building over Nathan Phillips Square, site of Toronto's City Hall.

The design evolved to its proposed height in response to the approval of the Trump International Hotel & Tower by the city council.

Facing high levels of dissent from 1 King West owners at the hotel's lack of profitability, Stinson decided not to offer the same system to Sapphire Tower purchasers.

On July 20, 2007, Sapphire Tower Development Corp., the parent company owned by Stinson, was approved for bankruptcy protection.