Where are pearls from MKR from?

Could you kindly elaborate on the origin of the pearls mentioned in the paragraph? I'm particularly interested in knowing where the pearls labeled as MKR hail from. Are they sourced from a specific region or country? Is there a particular method or technique used in their production? Additionally, are these pearls known for any specific characteristics or qualities that distinguish them from others in the market? I'm eager to learn more about their provenance and uniqueness.