A/A-Absolutely Authentic. Pre Columbian, JG/YS-Jade Green/Yellow Stone, M/A/Z-Meso American Zone, Mayan, E/L/C-Early Late Classic +200 +900. 20 ancient beads plus the reptile pendant, 15-20 inches in possible length, 175 total grams, the largest bead is 1 1/2 inches in length + or - 1/16th of an an inch, and 5/8 th of an inch in diameter + or - a 1/16th of an inch. All images were shot by the seller utilizing a Canon and an AmScope trinocular stere...o microscope, 1 thru 9 are non magnified, 10 thru 12 are magnified and reflect the mineral deposits on/in the subject beads. The shipping of multiple purchases will be combined, all are packed with extreme care and will be sent VIA - USPS/Canada Post, air, tracked with expedited service. Sellers comments regarding the condition and authenticity of the subject beads: Still shiny after being in situ for at least 1, 000 years, in excellent overall condition with some losses due to wear. I was advised (by the seller) that the beads were authentic, and from the ancient Mayan culture, in all honesty I know they are authentic. I am NOT sure that last comment regarding the origin is accurate, that being mentioned there IS a possibility. With an eye loupe and the AmScope I inspected/studied each bead seeking the "tells" of antiquity, overall, I had no problem noting said tells, which included a surprise. Check images 11 & 12, note the uneven rings, those marks were made by flint or obsidian Sometime during the month of February I will be adding an additional procedure when I assess the authenticity of stone antiquities. I will be casting the suspension holes, then studying the casting with the AmScope. Thank you for your interest and trust.