Natural Ruby Necklace , 257.74 cttw , Ruby Mala , Ruby Beads Necklace , Ruby Necklace ,Ruby , African Ruby , Ruby Gemstone , Tanzanian Ruby Total Carat Weight : 257.74 Cts. Shape : Plain Round Flat Beads ( Drilled ) Strands : 1 Total Necklace Size : 21 Inches ( Adjustable ) Bead Size ( in mm ) : 5.5 - 7.5 x 3.5 - 5.0 Approx. ( Descending Size: biggest size in centre , smallest on ends ) Origin : Africa ( Tanzania ) A hand made " Dori Type " Closure Called " Sarafa " Made of silk threads , Most Suitable for adjustable length neckalce is used . A beautiful Ruby Beaded Necklace Length Long 21 Inches Adjustable , Big Size Bead , Customizable , Suitable for all occasions .