Hello, this item is a carved green jade sculpture of a frog, attributed to the Pre-Columbian Maya and dated circa 600–800 AD. The form is stylized with simplified anatomical features and rounded contours, consistent with Mesoamerican jade zoomorphic carvings. The dimensions (5.5 x 4 x 1.5 inches) and weight (1.8 lbs) suggest a substantial ceremonial object, possibly used in rituals related to fertility, rain, or agricultural cycles. The frog was symbolically tied to water and rebirth in Mayan belief systems, making such carvings spiritually significant.

Authenticity in Pre-Columbian jade is a major issue due to widespread replication, and stylistic features must align with known Mayan lapidary techniques. This piece shows surface wear and mineral inclusions suggestive of age, but a definitive appraisal would require mineral testing (e.g., Raman spectroscopy) and stylistic comparison to excavated parallels. If confirmed authentic, its value could fall in the $6,000 to $12,000 USD range. Without scientific authentication, its fair market value as a probable Pre-Columbian-style carving would more cautiously range between $800 and $1,500 USD.