This Aaron's Breastplate is Full Size and has All the Real Stones no substitutes. The stones are 40mm by 30mm. Several of the stones are made of smaller stones encased in clear resin. For example, an emerald size 40mm by 30mm would cost thousands, so I put small low quality emerald together in clear resin to make one large 40mm by 30mm stone in a gold colored setting. The whole breastplate is 9 inches by 9 inches with a gold colored chain. The name of the tribe on the stone is a sticker written in Paleo Hebrew script.