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2. Williamson pink diamond - Wikipedia

   en.wikipedia.org/wiki/Williamson_pink_diamond

   In 1952, the pink diamond became the main feature of a 4.5-inch (11 cm) platinum brooch designed by Frederick Mew of Cartier, at the centre of a jonquil-shaped flower with five petals and two leaves of noisette-cut diamonds and a stalk of baguette cut diamonds. [1] [2]

3. Argyle Pink Jubilee - Wikipedia

   en.wikipedia.org/wiki/Argyle_Pink_Jubilee

   Christie's has only auctioned 18 polished pink diamonds larger than 10 carats in its 244-year history. [4] The Jubilee was expected to tour internationally before sold at an invitation-only tender. [4] Originally weighing 12.76 carats (2.552 g), the light pink diamond started its cut in Perth in February 2012 [3] by Richard How Kim Kam. [5]

4. Princie Diamond - Wikipedia

   en.wikipedia.org/wiki/Princie_Diamond

   The Princie Diamond is an approximately 34.65-carat cushion-cut fancy intense pink diamond [1] discovered 300 years ago in the Golconda mines. Christie's (who auctioned it on 16 April 2013, when it fetched a price of 39.3 million dollars [2]) say that the Princie Diamond is believed to be the fourth largest pink diamond in the world, after the Daria-i-Noor (c. 175 to 195 carats), the Noor-ol ...

5. Diamond cut - Wikipedia

   en.wikipedia.org/wiki/Diamond_cut

   Diamond's RI is responsible for its brilliance—the amount of incident light reflected back to the viewer. Also important is a diamond's dispersive power—the ability of the material to split white light into its component spectral colors—which is also relatively high, at 0.044 (as measured from the B-G interval). The flashes of spectral ...

6. Halo (optical phenomenon) - Wikipedia

   en.wikipedia.org/wiki/Halo_(optical_phenomenon)

   A halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') [1] is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from colored or white rings to arcs and spots in the sky.

7. Pink Star (diamond) - Wikipedia

   en.wikipedia.org/wiki/Pink_Star_(diamond)

   The Pink Star was displayed (as the Steinmetz Pink) as part of the Smithsonian's "The Splendor of Diamonds" exhibit, alongside the De Beers Millennium Star, the world's second largest (the Cullinan I is the largest) top colour (D) internally and externally flawless pear-shaped diamond at 203.04 carat (40.608 g), the Heart of Eternity Diamond, a ...