Solomon's Diamond
In Reality Z-25 31-H, Solomon’s Diamond was a large jewel originally belonging to the Kovari tribe. Physically, "Solomon"'s "Diamond" was a huge jewel, almost the size of a person's head, and, despite the name, it was not a diamond at all, but a large piece of quartz in a brilliant cut shape.
Its attraction for others was the rumor that it was the Philosopher's Stone, able to transmute other substances into gold.[SOURCE NEEDED] Kaza felt a strange aura from it which he compared to that of Nerlana's tiara.
It was stolen from the Koravi temple sometime around the Boer War; its whereabouts for the next century were undocumented until it resurfaced at a Boothby's auction in the early 21st century. Catherine Maxwell, an old friend of the Kovari, purchased it and returned to Buranda to restore it to its proper owners. Attracted by the legend, the Skull intercepted her and stole it for himself. (COMIC: The Danger, the Diamond, and the Dowager)