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  2. Jewels of Diana, Princess of Wales - Wikipedia

    en.wikipedia.org/wiki/Jewels_of_Diana,_Princess...

    Her engagement ring consisted of 14 diamonds surrounding a 12-carat oval blue Ceylon sapphire set in 18-karat white gold. [ 54 ] [ 55 ] It was created by then-crown jeweller Garrard . The design was inspired by Queen Victoria's sapphire-and-diamond cluster brooch, a wedding present from Prince Albert in 1840, which Victoria donned that day as ...

  3. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    It is an amulet, which comprises diamond, pearl, ruby, sapphire, emerald, topaz, cat's eye, coral, and hyacinth (red zircon). Each of these stones is associated with a celestial deity, representing the totality of the Hindu universe when all nine gems are together. The diamond is the most powerful gem among the nine stones.

  4. List of diamonds - Wikipedia

    en.wikipedia.org/wiki/List_of_diamonds

    Discovered in 2015, it is the 5th largest diamond ever discovered at the Crater of Diamonds State Park, Arkansas Identified as a Type IIa crystal, the 8.52 carat diamond was cut and polished by Mike Botha into a custom-designed 4.605 carat Triolette shape during a week long event in North Little Rock and was graded a D IF, 0 Polish & 0 Symmetry ...

  5. Crown Jewels of the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Crown_Jewels_of_the_United...

    The sceptre is decorated with 285 gemstones, including 94 diamonds, 53 rubies, 10 emeralds, 4 sapphires and 3 spinels. [191] Circling the rod are bands of precious stones. At the top is a gold monde set with diamonds and topped by a plain cross, upon which sits a white enamelled dove with its wings outspread, representing the Holy Ghost. [193]

  6. Diamond color - Wikipedia

    en.wikipedia.org/wiki/Diamond_color

    Another factor that affects the value of fancy-colored diamonds is fashion trends. For example, pink diamonds fetched higher prices after Jennifer Lopez received a pink diamond engagement ring. [16] Fancy-colored diamonds such as the deep-blue Hope Diamond are among the most valuable and sought-after diamonds in the world.

  7. Diamond simulant - Wikipedia

    en.wikipedia.org/wiki/Diamond_simulant

    Synthetic sapphire and spinel are durable materials (hardness 9 and 8) that take a good polish; however, due to their much lower RI when compared to diamond (1.762–1.770 for sapphire, 1.727 for spinel), they are "lifeless" when cut. (Synthetic sapphire is also anisotropic, making it even easier to spot.)

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