Golden South Sea Pearls | Gemopedia

While South Sea pearls are considered the pinnacle of cultured pearls, golden South Sea pearls are particularly coveted as this golden color is rare in other pearl types. These pearls are usually from the Philippines and Indonesia and command prices higher than any other pearl.
Colors
Pale Yellow To Intense Gold

Golden South Sea Pearls Classification

Common Name

Golden South Sea Pearls

Species

NA

Variety

Golden South Sea Pearls

Colors

Pale Yellow To Intense Gold

Alternate Names

Gemstone Groups

Key Separations

Appearance, RI, birefringence blink and magnification. A "tooth test" is commonly used in which a pearl is rubbed against a tooth; if gritty, this is an indication that the surface is nacre, versus plastic and glass imitations that feel smooth.

Comments

Typical size of Golden South Sea pearls is 8 to 16mm; They are produced by gold lipped Pinctada maxima mollusk.

Golden South Sea Pearls Optical Properties

Transparency

Translucent - Opaque

Refractive Index

1.53-1.685

Birefringence

0.155

Optic Character

NA

Optic Sign

NA

Polariscope Reaction

Aggregate (AGG)

Fluorescence

SWUV: Variable
LWUV: Variable

CCF Reaction

Pleochroism

None

Dispersion

Comments

Golden South Sea Pearls Chemistry & Crystallography

Chemical Name

calcium carbonate + conchiolin and water

Chemical Formula

CaCO3

Synthesis

Crystal System

NA

Classification

Organic

Nature

Cultured

Crystallinity

Comments

Golden South Sea Pearls Characteristic Physical Properties

Hardness

2.5-4

Streak

Specific Gravity

2.72-2.78

Toughness

Good

Inclusions

Golden South Sea pearls tend to be more spotted than Akoya. They have a thicker nacre coat compared to other saltwater pearls. If the pearl is drilled you can inspect the hole to look for bead nucleus.

Luster

Dull

Stability

Poor

Fracture

Uneven

Cleavage

None

Comments

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