Victorian, circa 1870 well carved tiny Agate stone portrait of Dante Alighieri Decorative leaves & different carats Gold/Gold filled brooch

Victorian carved tiny portrait of Dante - tiny Agate stone 6 mm. by 9 mm. in the unmarked/unsigned - testing revealed multi-gold strengths. The highest K is found - at least 14K and less than 18K (15K is consistent with era). The leaves and pin were tested and appear to be heavy rolled gold and or less than 10K, possibly 9K, weight - 3.33 grams