Natural QUARTZ (ROCK CRYSTAL) 27.47 ct, Russia, MELIKIAN
GEMOLOGICAL REPORT № 143
Gemologist Olga Melikian | MAX: https://max.ru/gemstones 29/07/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………..….…….. 27.47 ct
Measurements (diameter): ……………………………….…19.63 mm
Сut: ………………… round fancy cut by master Dmitry Samorukov
Color / Color saturation: ……………………………………. сolorless
Clarity: ……………………………………………..….…….. loop clean
IDENTIFICATION: ……………………………….… Natural QUARTZ
TRADE NAME: …………………………………….. ROCK CRYSTAL
Geographic Origin: ………….…….… Russia, the Dalnegorsky mine
Treatment: …………………….…… No indications of any treatment
RESULTS OF DIAGNOSTIC METHODS
10x Magnifying glass: no visible mineral inclusions, no cracks, сhips or naifs. The stone is visually clean and the magnifying glass confirms this.
Refractive Index: ………………………………….… 1.544 - 1.553 (0.009)
Density: ………………………………………………………………….. 2.65
Polariscope: ……………………………….……………..…….. anisotropic
Dichroscope: …………………….……………………………………………
UV fluorescence: ……………………………………………………..…. No
Chelsea Filter: …………………………………..…………………………….
Color change | Alexandrite effect (daylight | artificial light): ………… No
Special properties:
Opalescence | adularescence | iridescence ……………………..………..
Cats eye effect…………………………………………….………………….
Asterism……………………………………….………………………………
DETAILED GEMOLOGICAL COMMENT
For further confirmation of the mining region, the gem report should be
supplemented with Raman microscope study, obtaining the spectrum
of this quartz, and comparing it with the base spectrum of quartz from
Dalnegorsky mine, Russia.
Gemologist Olga Melikian | MAX: https://max.ru/gemstones 29/07/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………..….…….. 27.47 ct
Measurements (diameter): ……………………………….…19.63 mm
Сut: ………………… round fancy cut by master Dmitry Samorukov
Color / Color saturation: ……………………………………. сolorless
Clarity: ……………………………………………..….…….. loop clean
IDENTIFICATION: ……………………………….… Natural QUARTZ
TRADE NAME: …………………………………….. ROCK CRYSTAL
Geographic Origin: ………….…….… Russia, the Dalnegorsky mine
Treatment: …………………….…… No indications of any treatment
RESULTS OF DIAGNOSTIC METHODS
10x Magnifying glass: no visible mineral inclusions, no cracks, сhips or naifs. The stone is visually clean and the magnifying glass confirms this.
Refractive Index: ………………………………….… 1.544 - 1.553 (0.009)
Density: ………………………………………………………………….. 2.65
Polariscope: ……………………………….……………..…….. anisotropic
Dichroscope: …………………….……………………………………………
UV fluorescence: ……………………………………………………..…. No
Chelsea Filter: …………………………………..…………………………….
Color change | Alexandrite effect (daylight | artificial light): ………… No
Special properties:
Opalescence | adularescence | iridescence ……………………..………..
Cats eye effect…………………………………………….………………….
Asterism……………………………………….………………………………
DETAILED GEMOLOGICAL COMMENT
For further confirmation of the mining region, the gem report should be
supplemented with Raman microscope study, obtaining the spectrum
of this quartz, and comparing it with the base spectrum of quartz from
Dalnegorsky mine, Russia.
Natural QUARTZ (ROCK CRYSTAL) 27.47 ct, Russia, MELIKIAN
INFORMATION ABOUT THE CUT
The cutting was developed and carried out by the master of the Russian Guild of Cutters, D.V. Samorukov /
Weight: ………………………………..………………….…..…….. 27.47 ct
Сut: …………………….… round fancy cut by master Dmitry Samorukov
Color / Color saturation: ………………………………………..… сolorless
Clarity: …………………………..……………….…………..…… loop clean
Geographic Origin: ……………………….…… Dalnegorsky mine, Russia
Treatment: ……………………………..… no indications of any treatment
IDENTIFICATION: ……………..… Natural QUARTZ (ROCK CRYSTAL)
The cutting was developed and carried out by the master of the Russian Guild of Cutters, D.V. Samorukov /
Weight: ………………………………..………………….…..…….. 27.47 ct
Сut: …………………….… round fancy cut by master Dmitry Samorukov
Color / Color saturation: ………………………………………..… сolorless
Clarity: …………………………..……………….…………..…… loop clean
Geographic Origin: ……………………….…… Dalnegorsky mine, Russia
Treatment: ……………………………..… no indications of any treatment
IDENTIFICATION: ……………..… Natural QUARTZ (ROCK CRYSTAL)