Do you need a different size? We offer complimentary resizing. During checkout simply specify your desired size. We will resize the ring and ship within 7-10 business days.
BIRTHSTONES & ANNIVERSARIES
Tourmaline is a birthstone for October, along with opal. Tourmaline is also the gem of the 8th wedding anniversary.
CHEMISTRY: Elbaite Na(Li1.5,Al1.5)Al6Si6O18(BO3)3(OH)4 Dravite NaMg3Al6Si6O18(BO3)3(OH)4 Liddicoatite Ca(Li2Al)Al6Si6O18(BO3)3(OH)3F Chromedravite NaMg3Cr6Si6O18(BO3)3(OH)4
REFRACTIVE INDEX: 1.624 to 1.644
BIREFRINGENCE: 0.018 to 0.040
- If you need additional information regarding any of our gems or stones please contact us at: email@example.com