Gem Shop | Gemstones

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

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  3. Semi-Precious Gems (17956)
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Black Opals

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Priority Featured Listings

Oval  Blue(Intense)  Natural  Eye Clean  More than 10
R67,600.00 or Make an Offer
Cape Town
Ends 7 Sep 09:15
R39,990.00 or Make an Offer
Cape Town
Ends 10 Sep 12:00
Ends 14 Sep 18:00
R24,990.00 or Make an Offer
Cape Town
Ends 24 Sep 10:30
R84,000.00 or Make an Offer
Cape Town
Ends 26 Sep 16:45
Cushion  Violet(Vivid)  Natural  Eye Clean  More than 10
R76,000.00 or Make an Offer
Cape Town
Ends 10 Sep 13:00
R100,000.00 or Make an Offer
Ends 9 Sep 14:45
2.00 - 4.99  Pink  SI1  Oval  Natural
Ends 8 Sep 20:30
Ends 14 Sep 01:15
Cape Town
Ends 18 Sep 08:15
Ends 8 Sep 20:30
1 to 40 of 17956 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.