GEMOLOGICAL REPORT                                                        № 138
  Gemologist Olga Melikian | Max: https://max.ru/gemstones                                5/03/2026
  Telegram: @olgamelikianofficial | https://melikianjewelry.com                     


  Weight:..………………..…….……………  3.03 ct (1.54сt and 1.49ct)
  Stone Measurements:…… 9.44x6.61x5.52 and 9.53x6.74x5.32 mm
  Сut: …………………….………………………..……..………..….. Pear
  Color: …………….………….……… White  with rainbow iridescence 
  Clarity:…………….…………………………..…………..…… eye clean


  IDENTIFICATION: …………………………….… Natural FELDSPAR  
  TRADE NAME: ………………………… RAINBOW MOONSTONES


  Geographic Origin: ……………….……………………… Madagascar

  Treatment: ………………………….. no indications of any treatment

10x glass: There are no mineral inclusions visible to naked eye, no 
  cracks or chips.
  Refractive Index: ………………………………………1.553-1.561 (0.008)
  Polariscope: …………………………………………………..…anisotropic
  Dichroscope: ……………………………………………………………… no
  UV fluorescence: ………….……………………………… no fluorescence
  Chelsea Filter: …………………………….…………………..………..…….
  Color change | Alexandrite effect (daylight | artificial light): …….…… no
  Microscope: no indications of any treatment




  Special properties:

  Opalescence | adularescence | iridescence ………Rainbow color - 
  orange, red, green, blue, yellow iridescence
  Cats eye effect…………………………………………….……….…No
  Asterism……………………………………….………………………No

DETAILED GEMOLOGICAL COMMENT
To accurately determine the mining region, the gem report should be supplemented with Raman microscope study, obtaining the spectrum of these rainbow moonstones, and comparing it with the base spectrum of rainbow moonstones from Madagascar.
Considering the characteristics of these Rainbow Moonstones:

  Weight …………………………………..…. 3.03 ct (1.54сt and 1.49ct)
  Сut: ……………………………………………..……………….….   Pear
  Color: ……………………………..… White  with rainbow iridescence
  Clarity: …………………………………………………..…..… eye clean
  Geographic Origin: …………………………………..…… Madagascar
  Treatment: …………………………… no indications of any treatment

Recommended market value corridor (retail price) of pair Rainbow Moonstones from Madagascar, weighing more than 3 carat, white         with rainbow iridescence, as of 5.03.2026:

390-480 $ per 1 ct
Note: the recommended market value corridor in indicated on this date. The price may change over time. The value corridor is an opportunity for the buyer/ seller to get an objective assessment of the value of this stone. With the receipt of new gemological research  data, the cost corridor may be revised.