Petrified Wood Plain Marquise measure approximately 31x16mm on average with a depth of 7mm, the luster is vitreous, polish is excellent showing high shine, gems shapes are symmetrical marquise with flat polished sides, each Petrified Wood bead has the unmistakable wood grain pattern, the opaque gems are colored a grayish brown in varying tones mixed with shades of cream for an unequaled organic gem of exceptional beauty.