ISTANBUL, TURKEY- OCTOBER 08: The Spoonmaker's Diamond (Kasikci Diamond) is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Spoonmaker's Diamond (Kasikci Diamond) is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Spoonmaker's Diamond (Kasikci Diamond) is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY - OCTOBER 08: The Spoonmaker's Diamond (Kasikci Diamond) is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Topkapi Dagger is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. The dagger, crafted upon orders of Sultan Mahmud I as a gift to Iranian ruler Nader Shah. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Topkapi Dagger is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. The dagger, crafted upon orders of Sultan Mahmud I as a gift to Iranian ruler Nader Shah. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Topkapi Dagger is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. The dagger, crafted upon orders of Sultan Mahmud I as a gift to Iranian ruler Nader Shah. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Trone of Sultan Mahmud II is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Trone of Sultan Mahmud II is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Trone of Sultan Mahmud II is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM

ISTANBUL, TURKEY- OCTOBER 08: The Trone of Sultan Mahmud II is on display during an exhibition of palace treasures at Topkapi Palace in Istanbul on October 08, 2019. Ahmet Bolat / Anadolu Agency/ABACAPRESS.COM