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The Leavitt signet ring is named after Henrietta Swan Leavitt, who made monumental contributions to astronomy with her research. One of her most striking accomplishments was discovering a direct correlation between a star's luminosity and its period of pulsation. This groundbreaking insight made it possible to measure the distances of stars from Earth, which in turn opened the door to many important discoveries by other astronomers.

+  This is a pre-order item 

+  Complimentary standard shipping 

+  Estimated shipping date: 15th June 2017

+  Solid Sterling Silver plated with Rhodium

+  High Polished

+  Approximate dimensions
    1.20cm (diameter)

+  For other ring sizes, please email us