Cranberry Red Sea Glass Necklace - This is only my 2nd sea glass creation using a piece of red sea glass. This chunky piece was found in Puerto Rico and measures approx 3/4' in length and is about 1/4' thick. Wrapped in sterling silver wire, the pendant hangs on an 18' sterling silver Venetian style chain. Red sea glass is an extremely rare color and is probably the most sough after colors. The approx odds of finding a piece of authentic red sea glass is 1 in every 5,000 pieces found.