The two names you have mentioned here are the historical gemstones which are the tributes to both human achievements and curse.
The Cullian diamond, which is also known as "The Great Star of Africa", is the largest rough diamond found in South Africa. The Great Star of Africa is now at the head of the British Royal Scepter in the crown jewels. It is the largest of the famous diamonds on Earth.
The Hope diamond was named after one of its owners named Henry Philip Hope. It has a curse attached to it. It brought many misfortunes, from bankruptcy to death, to its unfortunate owners. This is the most mysterious of all the gemstones in the world.
Other two famous diamonds are Tiffany Diamond and the famous Black Orlov Diamond. To know more about these precious and famous gemstones, you can take a look at the link below.
The Blue Hope Diamond.
At weighing 545.67 carats, the largest diamond on Earth is the Golden Jubilee. The largest known diamond is about 4,000 km across and exists as the heart of an old star about 50lightyears from Earth. It is identified as BPM 37093 - a crystallised white dwarf. (See Link)
The diamond becomes Blue because of Boron, this microelement is trapped into the diamond lattice. See the link below for other famous Blue diamonds.
. . . Before this mighty diamond was cleaved ( it looked like a brick - as it was being held - in the hand of mr wells - the owner of the diamond mine - located in Africa ) then the history goes on the tell us - that the first largest pieces ( numbered as nine ) there were nine smaller diamonds - once it was split - and there after - its descriptive story notes that - there remained about three hundred salable smaller diamonds - and no doubt - and the rest as they say - pershaps - became varing grades of diamond dust - this is to say dear readers - that this mighty diamond - once it had been cut ( it basically hit the winds ) and it definitely does not look like it originally did - when it was first discovered ( the largest cut however - is resting on the tip of a sepcter ) ended up as personal property of the crown jewels of England - along with a few others of that number nine ( and would you believe it ( found some sort of mistake about one of the diamonds ) diamond number four ( was suppose to have been given to Jackie onassiss ) by her second husband ) back during the timespan of their courtship era - Jackie was suppose to have rec'ed ( 42.0ct ) a round center stone - but diamond number four - was fashioned into a cushion shaped center/stone/type diamond - saw the picture with my very own eyes ( round vs cushion ) so therefore - mrs onassiss round diamond came from some other diamond source - and to think i have been carrying this info in the recesses of my mind for years - but to answer the question ( the cullinan diamond - is a white diamond ) or a least all of its remaining pieces - do not propose to known ( the diamond expert ) answers to of the question - but speaking as laity ( with my love for these gems - and my hope to own a sizable one in the future ) trust that i have shared a thought or two on the matter - as it were . . .
The Hope Diamond was found to glow red after being exposed to a UV light. The impurities of the diamond cause it to glow, the same impurities that give it a blue color normally.
The Hope Diamond. It's not the biggest or the best, but it is the most famous. ______________ As well, the Cullinan Diamond is famous; it's in the Queen's Crown Jewel collection.
Both are large stones:The Hope Diamond is blue-ish in its colour; andThe Cullinan for its size as a raw stone, more than 3,000 carats.
Their extraordinary size! Large diamonds are extremely, especially high quality large diamond, and therefore highly valuable. The Cullinan diamond is the largest rough diamond ever found. Uncut, it weighed 3,106.85 carats. It was cut into multiple diamonds, the largest of which is 530.3 carats, called the Cullinan I. The Hope Diamond is45.55 carat , and is especially regarded for its gray-blue color.
The raw Cullinan Diamond remains the largest raw diamond ever found. It was found in South Africa in 1905 and weighed over 3,000 carats. It filled the palm of a grown man's hand. The original size of the Hope Diamond is unknown, but today it is about the size of a egg, considerably less than the Cullinan.
The hope diamond is famous for its history, delicate size and beautiful color, and some say that it is supposed to be cursed.
The Hope Diamond is one of the most famous gems in the entire world. It was once owned by renowned jeweler, Pierre Cartier, who purchased it in 1910 for over 50,000 Francs. He sold it to some wealthy American socialites in 1911 for over 150,000 dollars.
You can find the Hope diamond at the Smithsonian. Read more, below.
The Blue Hope Diamond.
There is a famous diamond of about this weight called the Hope Diamond.
It is said to be cursed...
At weighing 545.67 carats, the largest diamond on Earth is the Golden Jubilee. The largest known diamond is about 4,000 km across and exists as the heart of an old star about 50lightyears from Earth. It is identified as BPM 37093 - a crystallised white dwarf. (See Link)
The Hope Diamond is housed in the Museum of Natural History in New York City.