I'm writing today to talk about "The Aurora Effect." Often referred to as "orient," this iridescent effect is visible on the surface of very fine grade pearls.
The PSL (Pearl Science Laboratory of Japan) describes it as such:
Aurora Effect is the characteristic phenomena of iridescent color that may appear on the surface of a pearl.
They test for this by using a cleverly named "Aurora Viewer", which shines a particular light on the underside of the pearl to reveal if there is visible Aurora.
Below are pictures of a Madama Akoya strand showing fantastic "aurora". Top Range white Hanadama will show this effect as well, but it's extremely difficult to photograph.
Instead, look for the following remarks:
And under "Teri Analysis" you want to see described iridescent color:
I hope you found this information useful. If you're interested in owning a Hanadama or Madama with strong aurora, click HERE to view our collection.