by Weldons | Feb 8, 2017 | Learn about diamonds
Iolite is a precious gemstone form of cordierite, named after the French geologist Pierre Louis Cordier in 1813. It is a blue to violet colour, similar to Sapphire or Tanzanite. With a hardness of 7 to 7.5, it is softer than sapphire, but harder than tanzanite. Its...
by Weldons | Feb 2, 2017 | Learn about diamonds
The Condé Pink Diamond (also known as Le Grand Condé) is a light pink pear-shaped stone of 9.01 carats, named after Louis II de Bourbon, the Prince of Condé. He was Commander of the French Army, and is believed to have been presented the diamond as a token of...
by Weldons | Dec 9, 2016 | Learn about diamonds
One of the rarest gemstones in the world, very few samples of Taaffeite are known, although there are probably more specimens out there that have been mistaken for spinel. It was discovered in 1945 by Richard Taaffe, an Irish gemmologist and son of Viscount Henry...
by Weldons | Nov 22, 2016 | Learn about diamonds
Although I find myself saying this a lot, the Beau Sancy must surely be one of the most beautiful diamonds in the world, a perfect combination of technical skill, artistic beauty, impeccable provenance and documented history. A modified pear shape double rose cut...
by Weldons | Nov 22, 2016 | Learn about diamonds
19th century England was very much the centre of the diamond world, primarily due to the extent of the British Empire. Queen Victoria was Empress of India, where most of the world’s most famous diamonds originated, and South Africa was to become one of the major...
by Weldons | Nov 11, 2016 | Engagement Rings, Learn about diamonds
The Alnatt is a 102 carat cushion cut diamond, named after its first known owner, Major Alfred Alnatt. It probably originated from South Africa, as most of the important yellow diamonds in the world come from there. Major Alnatt was a soldier, benefactor, sportsman...
by Weldons | Oct 12, 2016 | Learn about diamonds
Reposing in the same gallery of the Louvre as the Regent Diamond, the Hortensia diamond is a wonderful stone which goes to show that even a flawed diamond can be breathtakingly beautiful. Weighing 20 carats, it is a lovely orangey-pink colour, cut into a five sided...
by Weldons | Oct 7, 2016 | Learn about diamonds
The Hope diamond is a 45 carat cushion cut diamond of deep greyish-blue colour, almost metallic blue, which for almost 60 years has been the star attraction in the Smithsonian Institute’s gem collection. It measures 1 inch by 7/8 inches by almost 1/2 inch. When...
by Weldons | Sep 29, 2016 | Engagement Rings, Learn about diamonds
One of the most beautiful Royal tiaras in Europe, and certainly the one with the most interesting provenance, is the Vladimir Tiara, originally from Russia, and now the property of Queen Elizabeth II. Grand Duchess Maria Pavlovna was the aunt of Tzar Nicholas II, and...
by Weldons | Sep 15, 2016 | Learn about diamonds
One of the most fascinating effects that you can come across in a sapphire is Asterism, the effect where you can see a six pointed star in the stone, especially under a direct light source. The star will move as the light source moves. Although they come in many...
