Natural DANBURITE 19.34 ct, Russia, the Dalnegorsky mine, MELIKIAN
GEMOLOGICAL REPORT № 141
Gemologist Olga Melikian | MAX: https://max.ru/gemstones 11/05/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………..……….. 19.34 ct
Measurements: ……………….……..……. 26.79x13.49x10.96 mm
Сut: ………………… marquis fantasy by master Dmitry Samorukov
Color / Color saturation: ……………………………………. сolorless
Clarity: ………………………………………….…….. slightly included
IDENTIFICATION: …………………………..… Natural DANBURITE
TRADE NAME: ……………………………………..….. DANBURITE
Geographic Origin: ………….…….… Russia, the Dalnegorsky mine
Treatment: …………………….…… No indications of any treatment
10x Magnifying glass: small mineral inclusions and cracks visible on the
side of the stone and on one side of the pavilion. The cracks do not
extend to the surface, not visible from the top of the stone. No chips or
naifs.
Refractive Index: ………………………………….… 1.630 - 1.636 (0.006)
Polariscope: ……………………………….……………..…….. anisotropic
Dichroscope: …………………….……………………………………………
UV fluorescence: ……………………………… faint light greenish yellow
Chelsea Filter: …………………………………..…………………………….
Color change | Alexandrite effect (daylight | artificial light): ………… No
Special properties:
Opalescence | adularescence | iridescence ………………………No
Cats eye effect…………………………………………….……….…No
Asterism……………………………………….………………………No
Gemologist Olga Melikian | MAX: https://max.ru/gemstones 11/05/2026
Telegram: @olgamelikianofficial | https://melikianjewelry.com
Weight: ……………………………..………………..……….. 19.34 ct
Measurements: ……………….……..……. 26.79x13.49x10.96 mm
Сut: ………………… marquis fantasy by master Dmitry Samorukov
Color / Color saturation: ……………………………………. сolorless
Clarity: ………………………………………….…….. slightly included
IDENTIFICATION: …………………………..… Natural DANBURITE
TRADE NAME: ……………………………………..….. DANBURITE
Geographic Origin: ………….…….… Russia, the Dalnegorsky mine
Treatment: …………………….…… No indications of any treatment
10x Magnifying glass: small mineral inclusions and cracks visible on the
side of the stone and on one side of the pavilion. The cracks do not
extend to the surface, not visible from the top of the stone. No chips or
naifs.
Refractive Index: ………………………………….… 1.630 - 1.636 (0.006)
Polariscope: ……………………………….……………..…….. anisotropic
Dichroscope: …………………….……………………………………………
UV fluorescence: ……………………………… faint light greenish yellow
Chelsea Filter: …………………………………..…………………………….
Color change | Alexandrite effect (daylight | artificial light): ………… No
Special properties:
Opalescence | adularescence | iridescence ………………………No
Cats eye effect…………………………………………….……….…No
Asterism……………………………………….………………………No
Natural DANBURITE 19.34 ct, Russia, the Dalnegorsky mine, MELIKIAN
DETAILED GEMOLOGICAL COMMENT
The cutting was developed and carried out by the master of the Russian Guild of Cutters, D.V. Samorukov /
Огранка разработана и осуществлена мастером Русской Гильдии огранщиков Саморуковым Д. В./
For further confirmation of the mining region, the gem report should be supplemented with Raman microscope study, obtaining the spectrum of this danburite, and comparing it with the base spectrum of danburites from Dalnegorsky mine, Russia.
Weight: ………………………………..………………….…..…….. 19.34 ct
Сut: ……………………… marquis fantasy by master Dmitry Samorukov
Color / Color saturation: ………………………………………..… сolorless
Clarity: …………………………..……………….…………. slightly included
Geographic Origin: ……………………….…… Dalnegorsky mine, Russia
Treatment: ……………………………..… no indications of any treatment
IDENTIFICATION: ………………………………..… Natural DANBURITE
The cutting was developed and carried out by the master of the Russian Guild of Cutters, D.V. Samorukov /
Огранка разработана и осуществлена мастером Русской Гильдии огранщиков Саморуковым Д. В./
For further confirmation of the mining region, the gem report should be supplemented with Raman microscope study, obtaining the spectrum of this danburite, and comparing it with the base spectrum of danburites from Dalnegorsky mine, Russia.
Weight: ………………………………..………………….…..…….. 19.34 ct
Сut: ……………………… marquis fantasy by master Dmitry Samorukov
Color / Color saturation: ………………………………………..… сolorless
Clarity: …………………………..……………….…………. slightly included
Geographic Origin: ……………………….…… Dalnegorsky mine, Russia
Treatment: ……………………………..… no indications of any treatment
IDENTIFICATION: ………………………………..… Natural DANBURITE