Gem Shop | Gemstones

View the Gemstone Selling Guide for guidelines when buying and selling gemstones.

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  3. Semi-Precious Gems (15663)
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Black Opals

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Priority Featured Listings

Pretoria / Tshwane
Closes 29 Jan 23:45
Closes 18 Jan 21:45
Closes 18 Jan 23:45
Closes 1 Feb 19:45
R33,000.00 or Make an Offer
Closes 30 Jan 14:45
R280.00 or Make an Offer
Pretoria / Tshwane
Closes 26 Jan 05:00
East London
Closes 18 Jan 21:00

Featured Listings

R18,800.00 or Make an Offer
Cape Town
Closes 31 Jan 10:00
Closes 27 Jan 20:00
Closes 29 Jan 17:00
R8,600.00 or Make an Offer
Cape Town
Closes 7 Feb 19:00
Closes 18 Jan 21:30
R26,600.00 or Make an Offer
Cape Town
Closes 28 Jan 21:00
R14,400.00 or Make an Offer
Cape Town
Closes 28 Jan 12:00
R17,000.00 or Make an Offer
Cape Town
Closes 28 Jan 22:00
R26,000.00 or Make an Offer
Cape Town
Closes 26 Jan 07:30
R2,700.00 or Make an Offer
Closes 31 Jan 14:30
R8,800.00 or Make an Offer
Cape Town
Closes 22 Jan 09:30
R2,900.00 or Make an Offer
Closes 20 Jan 17:00
1 to 40 of 15663 items.  
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Shop for a variety of gemstones online on bidorbuy. Bidorbuy has a wide range of gemstones available to buy, whether you are a gemologist, jeweller, investor, collector or private buyer. You can buy and shop for quality precious gems such diamond, ruby, sapphire, emerald, Alexandrite and Tanzanite stones. Diamonds of colour D, E, F, G, H, I, J, K, L and M and over are available. Find Yellow, Brown, Clear, Blue, Pink and Red diamonds. You will find flawless stones on our site (F and IF) - as well as VVS1, VVS2, VS1, VS2, SI1, SI2 and I clarities - and maybe even a Pink Star Diamond. Jewels on bidorbuy come in a range of cuts - Asscher, cushion, heart, emerald, marquise, oval, pear, princess, radiant and round. Buy the most brilliant and vibrant blue and purple tanzanite and sapphires also - Bidorbuy has violetish blue and blueish violet Tanzanite. You can buy tanzanite of vB or Bv 5, 4, 3 or lower. Find Eye Clean - EC - Tanzanite or Slightly, Moderately or Heavily Included Tanzanite. We have different carats available from 0.1 carats to stones over 5 carats. New investment stones like Demantoid garnets are also available. Maybe you will be lucky and find something very rare such as jeremejevite, blue garnet, black opal, taaffeite, poudretteite, benitoite, padparasha sapphires, musgravite, red beryl, paraiba tourmaline, jadeite, grandidierite or even a red diamond.