Tuesday, 14 January 2020
|Many people who have either inherited or bought a ring that is purported to be an alexandrite OR a Russian alexandrite end up disappointed. They usually have synthetic corundum laced with vanadium to produce the colour changing properties. From the turn of the century synthetic corundum was used in place of genuine gems. The science of imitating alexandrite has advanced and flux grown alexandrite is common. Only 2,000 kg of rough were mined in the Urals in the 1800s. Much of this was lost in faceting, leaving few genuine gems. Since the original find in Russia, other sources of alexandrite have been found in Brazil, India, Madagascar, Tanzania, Australia and Myanmar. None of these finds have been long lived. In 1987 in Brazil there was a find at Minas Gerais that lasted 4 months.|
55.88ct synthetic alexandrite
|The value of alexandrite is the strength of color change, the size, and the clarity. Location (unless verified Russian) doesn’t play a part.|
Fine alexandrite will always fetch top dollar and that’s the main reason why the gem is often misrepresented.
Monday, 13 January 2020
Backes & Strauss, the Piccadilly Princess Royal Emerald Green. It is set with 245 Zambian emeralds totaling 31.91 carats in 10 different cuts. $2.27 million
Cartier Tourbillon Mysterieux Azure features a 26 carat Ceylon sapphire which forms the detachable pendant to the body of the timepiece. € 1.2 million
Ruby bangle watch by Van Cleef & Arpels features 115 Mozambique rubies weighing a total of 151.25 carats. $ 1m+
Sunday, 12 January 2020
|The House of Fabergé was founded in 1842 in St. Petersburg by Gustav Faberge. In 1885, the House of Fabergé was bestowed with the coveted title "Goldsmith by special appointment to the Imperial Crown", beginning an association with the Russian tsars. Gustav was followed by his son Peter Carl Fabergé, until the firm was nationalized by the Bolsheviks in 1918.|
|In 1885, Tsar Alexander III commissioned the House of Fabergé to make an Easter egg as a gift for his wife, the Empress Maria Fedorovna. The House of Fabergé completed 50 Imperial eggs, of these, 43 are known to have survived. Following the end of the Soviet Union and the rise of the oligarchs, Russian collectors sought to repatriate Fabergé's works and auction prices reached record highs.|
On 27 November 2007, the Rothschild Fabergé Egg was auctioned at Christie's for £8.98 million. The Rothschild egg became the record price for a piece of Fabergé as well as the highest price ever paid for a Russian object and the most expensive price for a timepiece.
Carl Fabergé (1846–1920), Fabergé workshop, Saint Petersburg, Carl Fabergé (workmaster). Scarab Brooch, about 1900. Garnet, gold, diamonds, rubies, enamel, silver.
Carl Fabergé (1846–1920), Fabergé firm, St. Petersburg, Julius Rappoport (workmaster), Bratina, about 1900. Silver gilt, enamel, sapphires, emeralds, rubies, garnets, blue topaz, pearls.
Carl Fabergé (1846–1920), Fabergé workshop, Mikhail Perkhin (workmaster). Miniature Easter Egg Pendant, about 1900. Chalcedony, gold, white gold, diamonds.
Carl Fabergé (1846–1920), Fabergé firm, St. Petersburg, Erik Kollin (workmaster), Terrestrial Globe, before 1899, rock crystal, gold, compass.
Crown Brooch, 1890–1910, silver gilt, sapphires, rubies, diamonds.
Carl Fabergé (1846–1920), Fabergé workshop, Miniature Easter Egg Pendants, about 1900, gold, enamel, silver, pearls, diamonds, rubies, emerald.
Carl Fabergé (1846–1920), Fabergé workshop, Fantasy Fish Server or Centrepiece, 1896–1908, silver
Carl Fabergé (1846–1920), Fabergé firm, Moscow, Rabbit Pitcher, before 1899, silver, gold, garnets
Monday, 6 January 2020
Sunday, 5 January 2020
Saturday, 4 January 2020
Other gemstones that may display asterism are rose quartz, garnet, diopside, moonstone, spinel and opal.
|Star rubies and star sapphires display a six-ray star that seems to glide across the surface of the gem. This six-ray star is caused due to a phenomena known as "asterism".|
The term is derived from the Greek word "aster", which means star. Fine star rubies and sapphire come mainly from Mogok and Sri Lanka. The best stones will have just enough silk to create the star effect, but not so much as to harm the transparency and color.
|Black Star Sapphires with golden stars are one of the most fascinating forms of sapphire. The most valuable of the golden-star black stars come from Chanthaburi, Thailand.|
Black star sapphires differ from other colours of star sapphires because the star is formed not due to rutile silk but due to hematite plates.
|Star of Asia A round six-ray star sapphire weighing 329.7 carats. The stone's origin is Burma, and it's also part of the Smithsonian Museum's collection.
Weighing 27.62 carats, the Star of Bharany Ruby is one of the world’s finest star rubies.
|A star ruby is considered potent protection against magic. Star rubies were worn by knights in battle to protect themselves from the enemy. Tales in Karnataka (India) say that if it is worn as a visible pendant or as a headgear then anyone who faces you as an enemy loses half their valour. |
The power of star ruby is said to be the highest during full moon.