PARAIBA TOURMALINE 2.61 ct, Bellerophon, MELIKIAN
GEMOLOGICAL REPORT № 132
Gemologist Olga Melikian | WA: https://wa.me/79990437349 23/01/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………………….. 2.61 ct
Measurements: ……………….………………. 9.54x7.77x5.00 mm
Сut: ……………………………………………..……………. cushion
Color / Color saturation: …… neon blue | medium color saturation
Clarity: …………………………………..…………… slightly included
IDENTIFICATION: …………………….…… Natural TOURMALINE
TRADE NAME: …………………………… PARAIBA TOURMALINE
Geographic Origin: …………………………………… Mozambique
Treatment: …………………….……………………. Heat treatment
10x Magnifying glass: ……………………………………………….…
Several mineral inclusions (graphite)^ several small cracks within the
stone. There are no planar cracks, cutting deffects, chips. 100%
transparency. Strong neon.
Refractive Index: …………………………………….… 1.620 - 1.640
Polariscope: ………………………………………..…….. anisotropic
Dichroscope: ……………………………………………………………
UV fluorescence: …………………………………… no fluorescence
Chelsea Filter: …………………………….…………………………….
Color change | Alexandrite effect (daylight | artificial light): …….no
Microscope: A series of mineral inclusions (presumably graphite) are
observed. Traces of heat treatment are visible. No other types
of treatment were detected.
DETAILED GEMOLOGICAL COMMENT
To accurately determine the mining region, the gem report should be supplemented with Raman microscope study, obtaining the spectrum of this tourmaline Paraiba, and comparing it with the base spectrum of tourmaline Paraiba from Mozambique.
Special properties:
Opalescence | adularescence | iridescence ………………………No
Cats eye effect…………………………………………….……….…No
Asterism……………………………………….………………………No
Gemologist Olga Melikian | WA: https://wa.me/79990437349 23/01/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………………….. 2.61 ct
Measurements: ……………….………………. 9.54x7.77x5.00 mm
Сut: ……………………………………………..……………. cushion
Color / Color saturation: …… neon blue | medium color saturation
Clarity: …………………………………..…………… slightly included
IDENTIFICATION: …………………….…… Natural TOURMALINE
TRADE NAME: …………………………… PARAIBA TOURMALINE
Geographic Origin: …………………………………… Mozambique
Treatment: …………………….……………………. Heat treatment
10x Magnifying glass: ……………………………………………….…
Several mineral inclusions (graphite)^ several small cracks within the
stone. There are no planar cracks, cutting deffects, chips. 100%
transparency. Strong neon.
Refractive Index: …………………………………….… 1.620 - 1.640
Polariscope: ………………………………………..…….. anisotropic
Dichroscope: ……………………………………………………………
UV fluorescence: …………………………………… no fluorescence
Chelsea Filter: …………………………….…………………………….
Color change | Alexandrite effect (daylight | artificial light): …….no
Microscope: A series of mineral inclusions (presumably graphite) are
observed. Traces of heat treatment are visible. No other types
of treatment were detected.
DETAILED GEMOLOGICAL COMMENT
To accurately determine the mining region, the gem report should be supplemented with Raman microscope study, obtaining the spectrum of this tourmaline Paraiba, and comparing it with the base spectrum of tourmaline Paraiba from Mozambique.
Special properties:
Opalescence | adularescence | iridescence ………………………No
Cats eye effect…………………………………………….……….…No
Asterism……………………………………….………………………No
PARAIBA TOURMALINE 2.61 ct, Bellerophon, MELIKIAN
Considering the characteristics of this Paraiba tourmaline:
Weight: ……………………………..….……………………….. 2.61 ct
Сut: ………………………………….…………..……………. cushion
Color / Color saturation: …… neon blue | medium color saturation
Clarity: …………………….……………………….… slightly included
Geographic Origin: …………………………….……… Mozambique
Treatment: …………………….…………………..…. Heat treatment
Recommended market value corridor (retail price) of Mozambique Paraiba tourmaline weighing from 2 carat, slightly included clarity, and neon blue white strong neon color, as of 23.01.2026:
9500-11000 $ 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.
Weight: ……………………………..….……………………….. 2.61 ct
Сut: ………………………………….…………..……………. cushion
Color / Color saturation: …… neon blue | medium color saturation
Clarity: …………………….……………………….… slightly included
Geographic Origin: …………………………….……… Mozambique
Treatment: …………………….…………………..…. Heat treatment
Recommended market value corridor (retail price) of Mozambique Paraiba tourmaline weighing from 2 carat, slightly included clarity, and neon blue white strong neon color, as of 23.01.2026:
9500-11000 $ 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.