What does a GIA report confirm on a blue sapphire?

A GIA report independently confirms the stone is natural corundum and states whether it has been heat-treated. For many stones it also offers an opinion on country of origin: GIA prints on its reports that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data, which is not the same as a verification.

Are these blue sapphires heated or unheated?

Both appear in this collection. Treatment status is confirmed on the GIA report and stated plainly on every product page - unheated stones are rarer and typically priced at a premium over heated stones of comparable size and color.

Where are these blue sapphires from?

Most of the blue sapphires in this collection are sourced from Sri Lanka (Ceylon), with additional stones from other origins. Origin is disclosed on each product page.