What is a Padparadscha Sapphire? (UPDATED 2019 Definition)

Introduction To Padparadscha A Padparadscha Sapphire is a fancy colored sapphire that is a mix of orange and pink color. Gem Labs Definition According to many gem labs, the precise definition “is a variety of corundum from any geographical origin whose colour is a subtle mixture of pinkish orange to orangey pink with pastel tones … Read moreWhat is a Padparadscha Sapphire? (UPDATED 2019 Definition)

Other Gemstones

Other Gemstones Some of the other commonly known gemstones are not listed. These may include: Peridot, Amethyst, Topaz, Citrine, Opal, , Amber, Andalusite, Beryl, Chrysoberyl, Coral, Fluorite, Iolite, Lapis, Malachite, Pyrite, Quartz, Sphene, Spodumene, Zoisite, Serpentine. This list is updated on a yearly basis. If you strongly feel that we left out a known rare … Read moreOther Gemstones


We believe that every gemstone’s degree of rarity depends on two critically connected elements:  Availability & Market Desirability. At all times, this concept of market desirability must be considered through a lens of an informed collector.

For example, an informed collector knows:

-Marketing can influence a person to want anything.

-Jewelry that is beautiful and fashionable does not translate into true value.

-Just because a gemstone is very limited in availability, does not mean it will be desirable if it looks ugly. 

Availability defined:  the degree in which a gemstone can be readily obtained.

Market Desirability defined: the characteristics that a gemstone possess that are desired by an informed collector.  The rare characteristics include:

  1. Treatment. Is the stone Untreated or Treated. Simply put: did it come from the earth naturally or was it enhanced  through a foreign process? Being Natural →Most important factor = More Rare
  2. Size. The bigger it is, the more difficult it is to find. Carat Weight ⇑ = More Rare
  3. Origin.  Exotic parts of the world are known for specific gemstones and fetch more $ = More Rare
  4. Clarity.  Stones without any eye visible inclusions will be worth more than ones that have  blemishes and interior obscurities. Clean looking gems = More Rare
  5. Cutting. The stone’s superficial brilliance and shine= Stones are sometimes cut in a way that maximizes light reflection= More Rare
  6. Shape. Smallest factor in rarity, still- odd or fancy shapes can give an additional layer of uniqueness  making it= More Rare


Christie’s & Sotheby’s Most Rare Alexandrites

In 2014, Christie’s auctioned off a 21 carat Russian Alexandrite in Geneva Magnificent Jewels, Switzerland.  The pre-auction valuation of $450,000-$650,000 Swiss Francs (USD Equivalent about the same) was grossly underestimated. The final price: $1,325,000 CHF! This amounts to a whopping $60,000 USD per carat!

, Christie’s & Sotheby’s Most Rare Alexandrites
Image Source: Christies.com

Read moreChristie’s & Sotheby’s Most Rare Alexandrites