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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Famous Diamonds: The Taylor-Burton Diamond

Like the famous Elizabeth Taylor Diamond, the Taylor-Burton Diamond was another of Richard Burton’s extravagant gifts to wife Elizabeth Taylor during their public and tumultuous marriages. The couple’s emotionally-charged private life often drew as much attention as their movie roles, and their luxurious tastes, Taylor’s love for diamonds especially, were legendary. (more…)

Famous Diamonds: Granny’s Chips

In addition to Cullinan I and the already featured famous diamond Cullinan II, the 3,106 carat (ct) Cullinan rough also produced stones III-IX, plus 96 smaller diamonds. Asscher, the diamond cutting firm, retained these diamonds as payment for cutting and polishing the Cullinan rough. The government of South Africa purchased most of them and gave the diamonds to Queen Mary in 1910. (more…)

Famous Diamonds: The Portuguese

The Portuguese, a 127.01 carat Asscher cut diamond, was graded by GIA as VS1 clarity, M color, with Very Strong blue fluorescence. Photo: Chip Clark, Courtesy: Smithsonian Institution

Surprisingly, the 127.01 carat diamond called the Portuguese seems to have no connection to its namesake country. Legend claimed this diamond was found in the mid-1700s in Brazil and belonged to Portuguese royalty. However, there is no evidence to support this story. Instead, records indicate the diamond was found at the Premier Mine in Kimberley, South Africa, in 1910. (more…)

Famous Diamonds: The Jubilee

At 243.35 carat (ct), the Jubilee is one of the finest examples of a diamond of exceptional size and quality (not to be confused with the Golden Jubilee, a 545.67 ct brown diamond). (more…)

Famous Diamonds: Napoleon Diamond Necklace

The Napoleon Diamond Necklace, in the Smithsonian National Museum of Natural History, is set with 234 diamonds weighing approximately 263 carats; the largest stone is about 10.40 carats. Photo: Chip Clark, Courtesy: Smithsonian Institution

historic diamond necklace was a gift from Napoléon Bonaparte to his second wife, Marie-Louise of the Austrian House of Hapsburg, Empress of France. The necklace was given to commemorate the birth of their son, Napoléon François Joseph Charles (also known as Napoleon II), in 1811. Following her death in 1847, the necklace remained in the family for several generations. (more…)

Famous Diamonds: The Orlov

Legend says was pried from the eye of an idol in India in the 1700s by a deserter from the French army. Photo: M. Nachinkin, Courtesy: RIA Novosti

The Orlov, a large rose-cut diamond, has been described as being shaped like half of a pigeon’s egg. It is the fourth in our Famous Diamonds series. (more…)

Queen Elizabeth Koh-i-noor
Famous Diamonds: The Koh-I-Noor

Of all the diamonds in our Famous Diamonds series, the Koh-i-noor has one of the most mysterious pasts. It is likely from the Golconda region of India, although it is not known exactly when it was found, resulting in centuries of debate about its early history.

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The Culllinan II, a 317.4-carat rectangular cushion cut, is set into the Imperial State Crown. - Courtesy Time & LIFE Pictures/Getty Images
Famous Diamonds: Cullinan II

The Cullinan II is a 317.40 carat (ct) cushion cut diamond and the centerpiece of the British Imperial State Crown. Do you know the history behind this beautiful diamond? (more…)

Elizabeth Taylor diamond
Famous Diamonds: The Elizabeth Taylor Diamond

What makes a diamond famous? It might be the diamond itself, the story behind it or the people who’ve owned it. Today we kick off part one of our Famous Diamonds series, which will reveal the stories and secrets behind some of the world’s most extraordinary diamonds. First in the series is the 33.19 carat Elizabeth Taylor Diamond. (more…)

Rubies vs. Diamonds: What are the Similarities and Differences?
Rubies and diamonds are among the world’s most treasured gemstones. Learn about which similarities and differences you should know before a purchase.
Where are Diamonds Found? Spotlight on Botswana Diamonds

As of 2023, Botswana is the world’s largest producer of diamonds by value and second largest producer of diamonds by volume. Some of the world’s largest diamonds have been found here. Diamonds help build Botswana’s infrastructure, including schools and hospitals, support female leadership, and combat diseases such as AIDS.

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Where are Diamonds Found? Spotlight on South African Diamonds
South African diamonds created the modern diamond industry. Two teenagers — Erasmus Jacobs and Cecil Rhodes — helped make this happen. Learn how Jacobs found the first South African diamond and how Rhodes built up a diamond empire. In this blog