The Jubilee Diamond, originally known as the Reitz Diamond is a colourless, cushion-shaped diamond weighing 245.35 carats (49.07 grams), making it the sixth largest diamond in the world. It was originally named after Francis William Reitz, the then president of the Orange Free State where the stone was discovered, before being renamed to honour the 60th anniversary of the coronation of Queen Victoria in 1897.

The original stone, a rough octahedron weighing 650.80 carats (130.16 g), was discovered in 1895 at the Jagersfontein Mine in South Africa. A consortium of diamond merchants from London purchased it along with its even larger sister, the Excelsior, in 1896, and sent it to Amsterdam where it was polished by M.B. Barends. A 40 carat (8 g) chunk was removed, which itself yielded a 13.34 carat (2.668 g) pear-shaped gem eventually purchased by Dom Carlos I of Portugal.

References

• “The Jubilee”, Famous, Historic and Notable Diamonds

References

• Diamonds : Wholesale Loose Diamonds, Diamond Rings and Diamond Jewelry Buy loose diamonds at wholesale prices from our huge inventory of top quality stones. We also offer an extensive collection of diamond rings and other
• New-York-Diamond-Exchange: Engagement Rings diamond ring loose Diamond Engagement Rings, Loose Diamonds and GIA certified diamonds from the NY Diamond Exchange. The personalized approach to diamonds from New York's
• eBay Guides - Diamonds Buying Guide Buy diamond earrings, a diamond ring, diamond necklace or diamond pendant easily - use eBay's Diamonds Buying Guide.
• Hot Diamonds and Jewelry | A diamond is for ever Diamonds and Jewelry | Trends 2006 | A diamond is for ever.
• Engagement Diamonds Online at Excellent Prices and Quality Purchase diamonds online from the diamond experts. Education provided by diamond experts on cut, clarity, brilliance and color. Hand selected diamonds
• Trusted Diamond Jeweler: Helzberg Diamonds for Jewelry, Gemstones Discover timeless jewelry & experience a diamond jeweler you can trust when you shop with Helzberg Diamonds. Find engagement rings & enjoy buying diamonds,
• Diamond - Wikipedia, the free encyclopedia Diamond is an allotrope of carbon. It is the hardest known natural material and the third-hardest known material after aggregated diamond nanorods and
• Diamond.com - Diamond engagement rings,wedding rings,diamond stud Diamond.com offers fine diamond jewelry,engagement and wedding rings,diamond white gold rings,promise rings,diamond and gemstone bracelets,pearl necklaces
• Diamond Rings and Fine Diamond Jewelry by Diamondsafe.com Diamond Rings, Certified Loose Diamonds by a leading diamonds superstore. Browse our large selection of diamond rings, and a vast selection of fine diamond
• Diamonds, Diamond Engagement Rings, Diamond Rings, Diamond Specialises in diamond and gemstone jewellery. Guides, ring size help. Contacts.
• diamond: Definition and Much More from Answers.com diamond n. An extremely hard, highly refractive crystalline form of carbon that is usually colorless and is used as a gemstone and in abrasives,
• SDNHM The Nature of Diamonds: Facts About Diamonds Most diamonds are over three billion years old, two-thirds the age of the Earth. There are a few "youngsters," though, which are only 100 million years old.