Collectables
Collecting rocks, crystals and minerals
Find great specimens of minerals, crystals, rocks and tumbled stones for your collection on bidorbuy.
Find great specimens of minerals, crystals, rocks and tumbled stones for your collection on bidorbuy.
Precious stones may be rare, but many semi-precious stones are equally beautiful.
Moh Hardness Scale: 2.5 to 4.5 Specific Gravity: 2.6 – 2.85 Refractive Index: 1.52 – 1.69 Colour: White, pink, yellow, silver, black, blue, green
The market value and aesthetic quality of a diamond is defined by the four C’s: Colour, Carats, Clarity and Cut.
Seller: sungems Name: Heleen Rossouw Heleen describes her bidorbuy selling venture as a “semi-full-time-hobby-supplementary-income business”. Her main income derives from a family-run company in the