A ( 56 X 23 X 7 mm. ) OVAL SHAPED , ALL NATURAL , MULTI-COLOR PICASSO GEMSTONE THAT WILL BE MADE INTO A BEAUTIFUL NECKLACE BY HANDCRAFTING A HOOK CLASP ON A BRICK COLORED LEATHER CORD WITH YOUR CHOICE OF EITHER 14-KT. ROLLED GOLD OR .925 ( ARGENTIUM ) STERLING SILVER. THIS GEMSTONE WEIGHS 80 CARATS AND HAS A MOHS HARDNESS OF 6 .