GEMOLOGICAL REPORT № 127
Gemologist Olga Melikian | WA:
https://wa.me/79990437349 20/08/2025
Telegram: @olgamelikianoffician |
https://melikianjewelry.com Weight: ……………………………..………………………….. 9.26 ct
Measurements: ……………….……………. 13.35x10.52x8.43 mm
Сut: ……………………………………………..……………. cushion
Color / Color saturation: ….… blue green | strong color saturation
Clarity: …………………………………..…….…moderately included
IDENTIFICATION: …………………….……
Natural TOURMALINE TRADE NAME: ……………………………
PARAIBA TOURMALINE Geographic Origin: …………………………………… Mozambique
Treatment: …………………….……………………. Heat treatment
Information about PARAIBA TOURMALINE: This cooper and manganese tourmaline is called «Paraiba tourmaline» in the trade. This gemstone is very rare and valuable. Large green and blue Paraibas with a strong neon glow are especially valuable.
RESULTS OF DIAGNOSTIC METHODS GEMOLOGICAL REPORT № 127
Gemologist Olga Melikian | WA:
https://wa.me/79990437349 20/08/2025
Telegram: @olgamelikianoffician |
https://melikianjewelry.com 10x Magnifying glass: ……………………………………………….…
many areoles of gas-liquid inclusions, mineral inclusions. There
are no large cracks, no surface cracks, no chips or nayfs
Refractive Index: …………………………………….… 1.620 - 1.640
Polariscope: ………………………………………..…….. anisotropic
Dichroscope: ……………………………………………………………
UV fluorescence: …………………………………… no fluorescence
Chelsea Filter: …………………………….…………………………….
Color change | Alexandrite effect (daylight | artificial light): …….no
Microscope: «Trichites» - flat cavities connected by thin capillaries, triangular two-phase inclusions, subparallel-oriented flat channel, voids in the cracks in the form of frost as a sign of heat treatment.