Necklaces

Material: Typically a mineral crystal, but can also be rocks like opal or organic materials like amber and pearls.
Appearance: Cut and polished to enhance its beauty, with characteristics like color, shine, and transparency being key factors.
Characteristics: Each gemstone has unique physical and optical properties, including hardness, clarity (flawlessness), and color (hue, tone, and saturation).
Value: Determined by a combination of factors including rarity, beauty, durability, and physical properties. While historically categorized as “precious” or “semiprecious,” this is now considered misleading by professionals.
Measurements: Weight is measured in carats (1 carat = 0.2 grams), while its size is determined by its cut and shape.