Видео с ютуба Don Kogen

Don Kogen - What's your most memorable gem?

Don Kogen - What's your most memorable gem?
Gem Hunter Gets Lead On 100-Kilos Of Rare Himalayan Beryl | Game Of Stones

Gem Hunter Gets Lead On 100-Kilos Of Rare Himalayan Beryl | Game Of Stones
Don Kogen - Does the money drive you to succeed in this industry?

Don Kogen - Does the money drive you to succeed in this industry?
Gem Hunters Climb The Himalayas Only To Find A Tiny Number Of Jewels | Game Of Stones

Gem Hunters Climb The Himalayas Only To Find A Tiny Number Of Jewels | Game Of Stones
Game of Stones Don Kogen talks about his childhood

Game of Stones Don Kogen talks about his childhood
Deadly Gem Hunting | Game of Stones

Deadly Gem Hunting | Game of Stones
The Search for Rare Sunset Rubies | Game of Stones

The Search for Rare Sunset Rubies | Game of Stones
KAT FLORENCE TV – WIELKA DZIESIĄTKA

KAT FLORENCE TV – WIELKA DZIESIĄTKA
Gemguys® Don Kogen talking about the rarity and market value of Zultanite® products

Gemguys® Don Kogen talking about the rarity and market value of Zultanite® products
Extremely Rare Rubies | Game of Stones

Extremely Rare Rubies | Game of Stones
Game of Stones | Premieres Fri Feb 28 10/9c

Game of Stones | Premieres Fri Feb 28 10/9c
Don Kogen - My early Gem hunting days

Don Kogen - My early Gem hunting days
Don Kogen talks about the thousands of miles he travels, is it all glamour?

Don Kogen talks about the thousands of miles he travels, is it all glamour?
Game of Stones: The Search for Rare Sunset Rubies. Discovery Channel

Game of Stones: The Search for Rare Sunset Rubies. Discovery Channel
KONSA KONTUZJOWANY? KOGO KUPIĆ? | DYLEMATY PRZED GW10 Hot or Not? 2026/27

KONSA KONTUZJOWANY? KOGO KUPIĆ? | DYLEMATY PRZED GW10 Hot or Not? 2026/27
The GemGuys Thailand Bug Bet from Game of Stones

The GemGuys Thailand Bug Bet from Game of Stones
Kongee

Kongee
The GemGuys Himalayan Motherlode. Interview from Game of Stones

The GemGuys Himalayan Motherlode. Interview from Game of Stones