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Interviews

This diamond could rewrite records. It is absolutely exceptional
Video
Seznam Zprávy · November 2025

This diamond could rewrite records. It is absolutely exceptional

«For average pink diamonds, we're easily talking millions if the colour is intense. For blue ones, significantly higher — in the tens of millions.»
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The new African king of gemstones. Angola wants to buy a stake in De Beers
Video
Seznam Zprávy · February 2026

The new African king of gemstones. Angola wants to buy a stake in De Beers

«We are in a time when natural diamond prices have fallen, and miners usually respond by reducing output. Angola did the exact opposite.»

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AI is penetrating even diamonds, but I personally prefer my own eye
Article
WIRED · July 2025

AI is penetrating even diamonds, but I personally prefer my own eye

«I see the future of the industry in a combination of science, technology, and craftsmanship. Those who don't understand it deeply won't last long in this business.»

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A diamond is a symbol of value and rarity. A synthetic one cannot be exceptional
Podcast
Zlámalová vysvětluje · June 2025

A diamond is a symbol of value and rarity. A synthetic one cannot be exceptional

«Until now, the effort was to certify synthetic diamonds in the same style as natural ones. Now, grading systems are splitting into two distinct categories for the first time.»

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Sama doma — The World of Diamonds
TV
Česká televize · December 2021

Sama doma — The World of Diamonds

«A natural diamond grows for one to three million years, then lies underground for at least 300 million years. The average age of a diamond is one billion years.»

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Guest: Vladimír Kondratěnko, diamond expert
Radio
Český rozhlas · May 2024

Guest: Vladimír Kondratěnko, diamond expert

«Every diamond has its unique internal pattern — stress in the structure that is as unmistakable as a fingerprint.»

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Forbes

3 articles
Forbes · Article · July 2025

Today's trend is stories, not just cut and carats, says diamond expert

«We are observing a fascinating shift in our clients' preferences. While classic round brilliant cuts dominated a decade ago, today we see a clear move towards fancy shapes.»
Read on Forbes.cz →
Forbes · Article · September 2025

Royals, Grace Kelly, and Taylor Swift — engagement rings that made history

«When Hailey Bieber showed her minimalist oval solitaire, we recorded a 300% surge in demand for that exact shape over the following months.»
Read on Forbes.cz →
Forbes · Article · August 2025

Diamonds may become cheaper worldwide. The reason is Russian oil in India

«Sanctions target products by place of processing — it doesn't matter where the gemstones shipped to the United States originated.»
Read on Forbes.cz →
Diamond trophy for iDNES.cz

Special Project

Diamond Trophy Worth CZK 1,000,000

The story behind the creation of a unique diamond trophy for the iDNES.cz competition — 1,264 natural diamonds set by hand under a microscope.

View the Making-Of →

All Mentions

iDNES.cz

10 mentions
A million-crown diamond piece from the iDNES.cz competition is heading to the winner
Article
iDNES.cz · December 2025

A million-crown diamond piece from the iDNES.cz competition is heading to the winner

«A diamond-shaped trophy set with 1,264 natural diamonds worth one million crowns is heading to its new owner.»

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Diamond, prize, competition — how a million-crown trophy was born
Article
iDNES.cz · November 2025

Diamond, prize, competition — how a million-crown trophy was born

«For the prize, we didn't choose a single diamond — there are 1,264 of them. All natural, set under a microscope.»

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How much do you know about diamonds? — Quiz
Article
iDNES.cz · November 2025

How much do you know about diamonds? — Quiz

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I have never crafted such a treasure, says the jeweller
Article
iDNES.cz · October 2025

I have never crafted such a treasure, says the jeweller

«Stone setting alone took over three days. In total, we worked on the piece for a month.»

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Competition for a million-crown diamond
Article
iDNES.cz · October 2025

Competition for a million-crown diamond

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Diamond Podcast — From the Earth's Core to a Symbol of Love
Podcast
iDNES.cz · September 2025

Diamond Podcast — From the Earth's Core to a Symbol of Love

«The story of a diamond begins deep underground — and ends as a symbol of the most precious relationship in life.»

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Lab vs. Nature — The Great Diamond Revolution
Podcast
iDNES.cz · September 2025

Lab vs. Nature — The Great Diamond Revolution

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Diamonds of Tomorrow — From Jewellery to Quantum Computers
Podcast
iDNES.cz · September 2025

Diamonds of Tomorrow — From Jewellery to Quantum Computers

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Branko Deljanin — Fancy coloured diamonds, interview
Article
iDNES.cz · September 2025

Branko Deljanin — Fancy coloured diamonds, interview

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Diamond competition worth one million crowns
Article
iDNES.cz · September 2025

Diamond competition worth one million crowns

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Media Contact

For interviews, expert commentary, and professional opinions on diamonds, contact Vladimír Kondratěnko.

Get in Touch [email protected]