Vintage 14K Religious Virgin Mary Enamel Pendant Necklace

Vintage 14K Religious Virgin Mary Enamel Pendant Necklace

Beautiful, vintage 14K yellow gold long thin chain necklace with a Spanish style Virgin Mary pendant
Double sided miraculous enameled pendant, back says “La Milagrosa”
Marked Aco 14K on clasps
Weighs 3.55 grams!
16 inches long
Not 100% sure if the pendant is 10K or 14K or maybe even 9K, but I did test it on both. Jeweler tested it as well and found very similar ones online (shown in last three pics)