The XRF analysis of this gold ring indicates a high-quality alloy composition, with 73.11% gold, 25.61% silver, and a small amount of copper at 1.27%, resulting in an alloy of approximately 17.55 karats. The high gold content suggests a piece crafted for a person of considerable wealth and status, which aligns with its historical connection to the Iranian Royal Family. The presence of silver adds a level of hardness to the gold, which is beneficial for the intaglio carving, ensuring the fine details remain sharp and clear over time. This particular blend of metals, while not uncommon in ancient jewelry, is a testament to the sophisticated metallurgical knowledge of the artisans from the 1st millennium CE. The rarity of such a well-preserved piece with royal provenance further enhances its value and desirability among collectors.