: Measured in millimeters (mm). A 1mm increase may seem small, but it can double the pearl's volume and significantly increase the price.
: Primarily from China, these are the most accessible and budget-friendly. They offer the widest variety of natural pastel colors (pink, peach, lavender) and shapes.
: The "Queen of Pearls," grown in Australia and the Philippines. These are the largest (up to 20mm) and most expensive, prized for their luxurious white, silver, or golden hues. 2. Evaluate Quality (The 7 Value Factors)
: The classic "white pearl" from Japan, known for near-perfect roundness and intense, mirror-like luster. They typically range from 6mm to 9mm.