Diamond. (The month of April)
Actually that is strictly speaking, not true. Alexandrite (June), is far rarer and far more expensive than Diamond, Sapphire, Emerald or Ruby. This is due to the fact that Alexandrite is unique in the way that it dramatically changes colour depending on the light source. In sunlight it is blue, green or cyan but in all forms of indoor light it is purple, burgundy or maroon. An alexandrite of top Russian quality is worth up to $100,000USD per carat. Not even flawless diamonds are that valuable.
Therefore, the answer is:
Alexandrite (June)
Please note that the Hope Diamond, while priceless, doesn't count because its value comes from its history, not the fact that it is a Diamond.
The most famous birthstone for December just so happens to be blue topaz. Blue topaz shares several aesthetic similarities with aquamarine, the birthstone for March.
January BirthstoneJanuary Gemstone: GarnetJanuary Birthstone Color: Deep RedFebruary BirthstoneFebruary Gemstone: AmethystFebruary Birthstone Color: PurpleMarch BirthstoneMarch Gemstone: Aquamarine, BloodstoneMarch Birthstone Color: Pale BlueApril BirthstoneApril Gemstone: DiamondApril Birthstone Color: White, ClearMay BirthstoneMay Gemstone: EmeraldMay Birthstone Color: GreenJune BirthstoneJune Gemstone: Pearl, Moonstone, AlexandriteJune Birthstone Color: White or PurpleJuly BirthstoneJuly Gemstone: RubyJuly Birthstone Color: RedAugust BirthstoneAugust Gemstone: Peridot, SardonyxAugust Birthstone Color: Pale GreenSeptember BirthstoneSeptember Gemstone: SapphireSeptember Birthstone Color: Deep BlueOctober BirthstoneOctober Gemstone: Opal, Pink TourmalineOctober Birthstone Color: Multi-color, PinkNovember BirthstoneNovember Gemstone: Citrine, Yellow TopazNovember Birthstone Color: YellowDecember BirthstoneDecember Gemstone: Blue Topaz, TurquoiseDecember Birthstone Color: Blue
It is a matter of personal opinion
January's birthstone is garnet. It is believed to signify eternal friendship and trust. Garnet comes in various colors, but the most common color associated with January birthdays is deep red.
Kristen Stewart's birthstone is April's birthstone, which is diamond.
The most famous birthstone for December just so happens to be blue topaz. Blue topaz shares several aesthetic similarities with aquamarine, the birthstone for March.
a very beatiful birthstone
January BirthstoneJanuary Gemstone: GarnetJanuary Birthstone Color: Deep RedFebruary BirthstoneFebruary Gemstone: AmethystFebruary Birthstone Color: PurpleMarch BirthstoneMarch Gemstone: Aquamarine, BloodstoneMarch Birthstone Color: Pale BlueApril BirthstoneApril Gemstone: DiamondApril Birthstone Color: White, ClearMay BirthstoneMay Gemstone: EmeraldMay Birthstone Color: GreenJune BirthstoneJune Gemstone: Pearl, Moonstone, AlexandriteJune Birthstone Color: White or PurpleJuly BirthstoneJuly Gemstone: RubyJuly Birthstone Color: RedAugust BirthstoneAugust Gemstone: Peridot, SardonyxAugust Birthstone Color: Pale GreenSeptember BirthstoneSeptember Gemstone: SapphireSeptember Birthstone Color: Deep BlueOctober BirthstoneOctober Gemstone: Opal, Pink TourmalineOctober Birthstone Color: Multi-color, PinkNovember BirthstoneNovember Gemstone: Citrine, Yellow TopazNovember Birthstone Color: YellowDecember BirthstoneDecember Gemstone: Blue Topaz, TurquoiseDecember Birthstone Color: Blue
It is a matter of personal opinion
Her birthstone is the Blue Topaz, the December birthstone.
January's birthstone is garnet. It is believed to signify eternal friendship and trust. Garnet comes in various colors, but the most common color associated with January birthdays is deep red.
Turquoise is the birthstone most often associated with the Zodiac sign Sagittarius. Other blue stones can also have a positive effect on this sign.
Citrine His birthstone is topaz.His birthday is November 5th, 1987 The birthstone for November is Topaz the alternate birthstone is Citrine The mystic birthstone for November was pearl
The birthstone for July is the ruby. A mother's birthstone necklace for July can be purchased from Gemvara or Overstockjeweler. Ruby necklaces can also be purchased from most high street jewellery stores.
Kristen Stewart's birthstone is April's birthstone, which is diamond.
The modern birthstone for October is Opal or Tourmaline, the traditional birthstone is Tourmaline, the Mystical birthstone is Jasper, the Ayurvedic birthstone is Opal and the alternative birthstone is pink tourmaline.
The Birthstones January's birthstone is the garnet. February's birthstone is the amethyst. March's birthstone is the aquamarine. April's birthstone is the diamond. May's birthstone is the emerald. June's birthstone is the pearl. July's birthstone is the ruby. August's birthstone is the peridot. September's birthstone is the sapphire. October's birthstone is the opal. November's birthstone is the citrine. December's birthstone is the turquoise.