Yellow Topaz

Mineral Group: Topaz Group

Key Properties

Property Value
Mohs Hardness 8.0 (8)
Typical Size 1-50 carats (commercial: 2-25 carats; large sizes available)
Typical Price Range $20-150 per carat (commercial: $30-80; natural golden yellow)
Rarity Level Limited Occurrence
Availability Level Readily Available
Availability Driver Readily Available
Investment Appropriateness Unknown

Detailed Descriptions

Rarity Description: Yellow topaz appears in several localities but gem-quality stones are not plentiful.

Availability Description: Commercially available in a range of sizes and often marketed as affordable yellow gems; larger fine-color stones are less frequent.

Investment Description: No description available.

Colors

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Investment Ranking Calculation

The composite score of 36.25 is calculated using a weighted formula:

  • Geological Rarity (25%): 65 points
  • Market Availability (25%): 35 points
  • Investment Appropriateness (25%): 0 points
  • Hardness (12.5%): 65 points
  • Price Range (12.5%): 25 points

Formula: (65 × 0.25) + (35 × 0.25) + (0 × 0.25) + (65 × 0.125) + (25 × 0.125) = 36.25

BEARISH
36.25

Score Components

Geo rarity
65
Mkt availability
35
Invest Appr
0
hardness
65
price
25