NGC Blog :: gem red :: National Gemstone

A 18.17 Mahenge, Tanzania Red Spinel sold for $630,375 or almost $35,000 per carat.

May 18, 2022, 10:22 AM

Although not as expensive as the famous pink Hope Spinel (sold for $1.5 million in 2015), the 18.17 sold for more on a per carat basis.

Looking For A Large Burma ruby?

Apr 12, 2021, 8:37 AM

Sotheby's Magnificent Jewels has two with bidding starting on April 20, 2021 in Hong Kong.