Description
Tamim International exports cut rubies from Tanzania to jewellers, jewellery manufacturers, gem dealers and wholesalers worldwide. Our rubies come from the Winza and Morogoro mining areas, and we also buy from local small-scale miners to build our stock. Each offer describes the stones by carat weight, colour, clarity, cut and any treatment, and no payment is requested until you have seen the stones and signed the contract.
At a glance
| Item | Details |
|---|---|
| Product | Cut rubies, single stones and parcels |
| Origin | Tanzania: Winza (Dodoma region) and Morogoro |
| Described by | Carat weight, colour, clarity, cut and treatment |
| Lab report | Independent laboratory report on request |
| Export | Mining Commission export permit; royalties paid |
| Payment | Only after you have seen the stones and signed the contract |
| Price | Quoted per stone or parcel on request |
Tanzanian ruby: Winza and Morogoro
Ruby is the red gem variety of the mineral corundum. Tanzania has several ruby areas, two of which supply our stones:
- Winza, in Mpwapwa district, central Tanzania, which became known after a gem rush in 2007–2008 and is mined from deep primary deposits.
- Morogoro, where rubies and spinels have been mined since the 1980s in the Uluguru Mountains, including around Matombo, from marble-type deposits.
Source: GIA, Gems & Gemology field report on colored gemstone mining in Tanzania.
How rubies are described and valued
| Factor | What buyers look at |
|---|---|
| Colour | Hue, tone and saturation; a strong, pure red is the most valued |
| Clarity | Inclusions are normal in ruby; their type and visibility affect value |
| Cut | Shape, proportions and finish |
| Carat weight | Fine rubies above one carat are scarce and priced much higher per carat |
| Treatment | Heating and other treatments are common in ruby and are disclosed in the offer |
See before you pay
- You send an inquiry with your company details and the stones, carat sizes, quality and quantity you need.
- We reply with a written offer describing the specific stones or parcel.
- You or your representative see and check the goods in Tanzania, and an independent laboratory report can be arranged if you need one.
- Only when you are satisfied do we both sign the sales contract.
- Payment is made under the contract, and the goods are exported under a Mining Commission export permit with royalties paid.
We do not ask for advance payments, “registration fees” or deposits before you have seen the goods. If anyone asks you to pay in our name first, contact us directly on +255 780 397931.
Export documents
- Commercial invoice and packing list
- Mining Commission export permit
- Certificate of origin
- Independent laboratory report, where agreed
- Air waybill and insurance documents as agreed in the contract
Frequently asked questions
Where do your rubies come from?
From the Winza and Morogoro areas of Tanzania. We also buy from local small-scale miners to build our stock.
Do you sell rough or cut rubies?
Cut rubies.
Are your rubies treated?
Treatments such as heating are common in ruby. The treatment status of each stone or parcel is disclosed in the offer.
Can I get a laboratory report?
Yes. Ask in your inquiry and an independent laboratory report can be arranged before the contract is signed.
Do you ask for payment before I see the stones?
No. You see the stones first, and payment is made only after the contract is signed.
Buying rubies? Send an inquiry with the sizes, quality and quantity you need. See also our cut tanzanite and gold bars and nuggets.
