2021 was a usual year in that all gemstones and diamonds increased in price. 2022 was different. The link between top quality diamonds and high quality precious colored stones diverged.  This is extremely unusual during an inflationary period.  Generally, all diamonds and colored gemstones rise or fall together.  For example, one carat top white diamonds saw losses up to 15%, although the D-IF was stable at $22,000 per carat. Other qualities fell as much as 20-30%.  Colored diamonds remained stable except yellow diamonds.  They were the exception and experienced 5% gains.  Some large colored diamonds were pulled from auction last year because of no bids.  The softness in diamonds might be due to recessionary fears or the increased acceptability of lab created diamonds. Many millennials question paying the price for real diamonds vs. lab diamonds, if no one can tell the difference?  An excellent point.

Burma goods continued their assent as no new goods have been mined in Burma (Burma ruby, Burma sapphire, Burma spinel) in the last three years. With US sanctions and the coup in Burma, don't expect this to change any time soon anyway.

No-treatment top Colombian emeralds have found a niche market with collectors. Clean untreated Colombian emeralds are in strong demand.

Brazilian or Mozambique Paraiba Tourmaline remains the "chosen one" of the colored gemstone world. These stones continue to skyrocket because of incessant demand and no supply. As mentioned before, even the Madagascar material is now played out.  

Finally, Kashmir sapphires are practically nonexistent.