• No Reserve Congo Red Ruby. Natural octagonal rough crystal with attractive natural red color and crystal formation. • Weight: 94.50 ct. Size: 28 × 15 mm. Natural rough ruby crystal. Suitable for jewelry making, cutting and polishing, or for mineral and gemstone collections. • No Heat – No Treatment. This ruby crystal is completely natural and has not been heated or treated in any way. Natural rough specimen with good color and brightness. • Origin: Congo. • Shipping from Europe. Registered and insured shipping. • No additional tax within the EU. Please note that customs duties or import regulations outside the EU are the responsibility of the buyer.