BLUE Fancy Color Diamonds | Blue | Blue Diamonds

Labor Diamanten | Lab Grown Diamonds | Lab created Diamonds | man made Diamonds | cultured Diamonds | Zuchtdiamanten Farbige Diamanten Blau | Fancy Color Diamonds Blue

Lab Grown Diamonds | Lab created Diamonds | man made Diamonds | cultured Diamonds | cultured Diamonds

Color Diamonds Blue | Fancy Color Diamonds Blue

Halo Earstuds Fancy Color Blue
HEART TIGER diamond necklace pendant Necklace Pendant 1
  • Blue is the color of the sea and sky
  • Blue symbolizes depth (ocean) as well as vastness (horizon), inner peace as well as harmony, balance and contentment.
  • Blue stands for comfort and truth, seriousness, honesty and creativity
  • Blue is the most popular color worldwide – for men and women
  • Many people associate blue with loyalty, reliability, empathy, trust, loyalty and wisdom.

  • Popularity
    • Popularity is steadily increasing
  • Rarity
    • Extremely rare (among the rarest diamonds)
    • plus: often greyish, rarely as saturated as blue sapphires
    • account for less than 0.1% of the total diamond yield of the Cullinan mine (formerly known as Premier) in South Africa – the mine responsible for the production of most blue diamonds
    • rarer than pink diamonds in mine diamonds
      Some claim that pink diamonds are rarer than blue due to their very high prices, but this is more likely due to increased demand than decreased supply
    • Lab Diamonds: Blue can be grown well, easier than pink
  • Color Cause
    • Trace element boron (rare semi-metal)
      → the more boron, the deeper/richer the color
      → Boron atoms replace carbon atoms in the crystal lattice. As little as one boron atom per million carbon atoms can produce a striking blue color.
      → selective absorption of red light + selective transmission of blue light
    • Hydrogen
      Hydrogen can also cause grey-blue color in diamonds, as hydrogen is usually used in diamonds. cause of gray and even purple color is
  • Common Secondary Colors:
    • greyish-blue (frequent → tends to be less valuable)
    • greenish-blue
      …also contain traces of nitrogen → causes yellow in diamonds…
  • Price range Mine diamonds
    • High
    • most valuable / most expensive =
      • due to its rarity blue is generally a valuable color
      • rein Blue (ohne Sekundärfarben)
        → sehr hohe Farbintensität & tiefes + kräftiges Blau
        • Fancy Intense Blue
        • Fancy Vivid Blue
        • Fancy Deep Blue
    • modified by other rare color e.g. green or purple → can be very valuable, especially in higher color grades like vivid or deep

Classification

  • Faint Blue
  • Very Light Blue
  • Light Blue
  • Fancy Light Blue
  • Fancy Blue
  • Fancy Intense Blue
  • Fancy Dark Blue
  • Fancy Deep Blue
  • Fancy Vivid Blue

Shapes

Round shape is reserved for rough with strong color saturation
→ reflects more white light → color appears weaker
→ Round Blue Diamonds = rare shape + higher prices, as hard to find

Fancy Shapes → maximize color saturation → Blue often ground into Radiant, Pear, Cushion, etc.

Famous Blue Diamonds

Larger blue diamonds have fetched record prices at auction in recent years:

  • October 2010: 10.95 carat vivid blue diamond “Bulgari Blue” Christie’s → $15.7 million
  • October 2011: 6.01 carat vivid blue diamond ring $10.1 million
  • Hope diamond 45.52 carat noble deep gray-blue, rare type IIb, unique orange-red phosphorescence (= luminescent fluorescence) = most famous blue diamond in the world.