The beach glass jewelry is priced according to the rarity of the pieces used. The value of beach glass is determined by the color, shape and size of the glass. It can literally take decades for a thick shard of glass to develop smooth rounded edges. The combination of water and sand design the formation of the glass. The PH level of the water also attributes to the color and texture. Lake Erie's PH level is between 8 & 9. This is consistent with the PH levels in seawater, which also leaves a frosted and weathered finish to the glass.