Gem Shop | Gemstones

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

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  3. Semi-Precious Gems (18599)
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Black Opals

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Priority Featured Listings

More than 10  Blue(Intense)  Oval  Eye Clean  Natural
R84,900.00or Make an Offer
Cape Town
Ends 10 Oct 09:15
1.00 - 1.24  Oval  Eye Clean  Natural
Ends 4 Oct 22:00
R9,990.00or Make an Offer
Cape Town
Ends 25 Oct 11:45
R100,000.00or Make an Offer
Ends 11 Oct 14:45
R39,990.00or Make an Offer
Cape Town
Ends 13 Oct 12:00
More than 10  Violet(Vivid)  Cushion  Eye Clean  Natural
R76,000.00or Make an Offer
Cape Town
Ends 13 Oct 13:00
2.00 - 4.99  Blue(Moderate)  Oval  Eye Clean  Natural
Ends 5 Oct 01:00
2.00 - 4.99  Blue  Cushion  SI1
Ends 13 Oct 21:00
1 to 40 of 18599 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.