Know Your Pearls
Know your pearls:
Pearls:
Pearls are organic gemstones that form inside mollusks, such as oysters or mussels, when an irritant (like a grain of sand or a parasite) enters their shell. To protect itself, the mollusk secretes layers of nacre, a combination of calcium carbonate and conchiolin, around the irritant. Over time, these layers build up to form a pearl.
Types of Pearls:
1. SALTWATER PEARLS:
• Akoya Pearls: Classic, round, white pearl, typically from Japan or China.
• South Sea Pearls: Large pearls, often in white, silver, or gold tones.
• Tahitian Pearls: Exotic pearls with dark colors like black, green, or blue, from French Polynesia.
1. FRESHWATER PEARLS: Grown in freshwater mussels, typically more irregular in shape and affordable.
2. KESHI PEARLS: Small, free-form pearls formed when the mollusk rejects the implanted nucleus but still produces nacre.
Evaluating Pearls Quality (The 7 Value Factors):
LUSTER: The reflective quality and brilliance of the pearl.
SURFACE: The smoothness and absence of blemishes.
SHAPE: Round, Oval, baroque, or other shapes.
SIZE: Typically measured in millimeters.
COLOR: Body color, overtones, and orient.
NACRE THICKNESS: The depth of the nacre layer.
MATCHING: Uniformity in strand or pairs.
Key Characteristics of Pearls:
1. ORGANIC ORIGIN: Unlike most gemstones, pearls are produced by living organisms
2. COMPOSITION: Made of nacre, which gives pearls their unique luster and smooth surface.
3. SHAPES: Can be round, oval, teardrop, or irregular (baroque).
4. COLORS: Found in a variety of colors, including white, cream, pink, silver, gold, black and shades of green or blue.
5. NATURAL VS. CULTURED:
• Natural Pearls: Rare and form without human intervention.
• Cultured Pearls: Created through human assistance, where a nucleus (usually a bead) is implanted into the mollusk to start the pearl formation process.