Red jasper is iron-rich chalcedony in brick, oxblood and rust — humanity’s workhorse gem, carved into seals and amulets for five thousand years. Opaque, tough (about 7) and dependable, it grounds any design it joins.Each red jasper at GEMIC Institute is natural, certified in our Siem Reap laboratory and photographed as the exact piece for sale. Unique stones; worldwide tracked delivery with a 30-day return period.