Kambaba Stone Tumbles #1 measure approximately 5/8" to 1 1/8" (18mm to 28mm) and weigh approximately .19 to .61 ounces (4.8 to 15.7 grams). Please let me pick one for you. These are $1.50 USD each.
(Healing Crystal, Physical Heart Chakra Crystal, Grounding the Protecting Crystal)
Hardness: Unknown
Origin: Madagascar