An employee shows a large gem-quality diamond named by Russian miner Alrosa after Sputnik-V, a vaccine against the coronavirus disease (COVID-19), in Moscow, Russia February 25, 2021. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

An employee shows a large gem-quality diamond named by Russian miner Alrosa after Sputnik-V, a vaccine against the coronavirus disease (COVID-19), in Moscow, Russia February 25, 2021. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

An employee shows a large gem-quality diamond named by Russian miner Alrosa after Sputnik-V, a vaccine against the coronavirus disease (COVID-19), in Moscow, Russia February 25, 2021. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

A rare 242-carat rough diamond, which will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, is placed on scales during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

An employee shows gem-quality stones, including a rare 242-carat rough diamond that will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva TPX IMAGES OF THE DAY

A view shows gem-quality stones, including a rare 242-carat rough diamond that will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

A view shows a rare 242-carat rough diamond, which will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

An employee shows a rare 242-carat rough diamond, which will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

A view shows gem-quality stones, including a rare 242-carat rough diamond that will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

An employee shows a rare 242-carat rough diamond, which will be offered at the 100th international auction of Russian state-controlled diamond producer Alrosa, during a presentation in Moscow, Russia February 25, 2021. The diamond is one of the biggest gem-quality stones Alrosa has mined this century, the company said. Picture taken February 25, 2021. REUTERS/Tatyana Makeyeva

African-American supporters, including Terrence Williams, Angela Stanton and Diamond and Silk, pray with U.S. President Donald Trump in the Cabinet Room of the White House in Washington, U.S., February 27, 2020. Leah Millis: "After meeting with some of his prominent Black supporters, the group prayed with President Trump in the Cabinet Room of the White House. This photograph seemed to resonate with people." REUTERS/Leah Millis/File Photo SEARCH "PHOTOGRAPHERS TRUMP" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY.

A 1897 Faberge gold, enamel and diamond presentation box is seen during an auction preview at Piguet Auction House in Geneva, Switzerland December 1, 2020. REUTERS/Cecile Mantovani

An employee of Cox Co, the operation company of the face-mask speciality shop Mask.com, holding a luxury face mask decorated with the diamond, platinum and Swarovski crystals which is sellig for one million yen ($9,640), is reflected on a mirror at the shop, amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato TPX IMAGES OF THE DAY

A diamond with 0.70-carat shines on a luxury face mask decorated with the diamond, platinum and Swarovski crystals which is sellig for one million yen ($9,640), is displayed at Mask.com, a face-mask speciality shop operated by Cox Co., amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato

An employee of Cox Co, the operation company of the face-mask speciality shop Mask.com, displays a luxury face mask decorated with the diamond, platinum and Swarovski crystals which is selling for one million yen ($9,640), at the shop, amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato

A luxury face mask decorated with a 0.70-carat diamond, platinum and Swarovski crystals which is sellig for one million yen ($9,640), is displayed at Mask.com, a face-mask speciality shop operated by Cox Co., amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato

A diamond with 0.70-carat shines on a luxury face mask decorated with the diamond, platinum and Swarovski crystals which is sellig for one million yen ($9,640), is displayed at Mask.com, a face-mask speciality shop operated by Cox Co., amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato

An employee of Cox Co, the operation company of the face-mask speciality shop Mask.com, shows off a luxury face mask decorated with the diamond, platinum and Swarovski crystals which is sellig for one million yen ($9,640), at the shop, amid the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan November 25, 2020. REUTERS/Issei Kato

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond with 14.83-carat, before an upcoming Geneva auction on November 11 where it could fetch up to $38 million, during a Sotheby's preview in Geneva, Switzerland, November 6, 2020. REUTERS/Denis Balibouse

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond with 14.83-carat, before an upcoming Geneva auction on November 11 where it could fetch up to $38 million, during a Sotheby's preview in Geneva, Switzerland, November 6, 2020. REUTERS/Denis Balibouse

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond with 14.83-carat, before an upcoming Geneva auction on November 11 where it could fetch up to $38 million, during a Sotheby's preview in Geneva, Switzerland, November 6, 2020. REUTERS/Denis Balibouse

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond with 14.83-carat, before an upcoming Geneva auction on November 11 where it could fetch up to $38 million, during a Sotheby's preview in Geneva, Switzerland, November 6, 2020. REUTERS/Denis Balibouse

Employees work at the "ADM Diamonds" diamond-cutting factory, which provides shelter for refugees from the breakaway region of Nagorno-Karabakh, in the town of Abovyan outside Yerevan, Armenia October 26, 2020. Picture taken October 26, 2020. REUTERS/Maria Tsvetkova

Employees work at the "ADM Diamonds" diamond-cutting factory, which provides shelter for refugees from the breakaway region of Nagorno-Karabakh, in the town of Abovyan outside Yerevan, Armenia October 26, 2020. Picture taken October 26, 2020. REUTERS/Maria Tsvetkova

Women take care of their children at the "ADM Diamonds" diamond-cutting factory where they found shelter after fleeing the fighting over the breakaway region of Nagorno-Karabakh, in the town of Abovyan outside Yerevan, Armenia October 26, 2020. Picture taken October 26, 2020. REUTERS/Maria Tsvetkova

Children play with a ball at the "ADM Diamonds" diamond-cutting factory where they found shelter after fleeing the fighting over the breakaway region of Nagorno-Karabakh, in the town of Abovyan outside Yerevan, Armenia October 26, 2020. Picture taken October 26, 2020. REUTERS/Maria Tsvetkova

A boy plays with a face mask at the "ADM Diamonds" diamond-cutting factory, where people who fled the fighting over the breakaway region of Nagorno-Karabakh are sheltered, in the town of Abovyan outside Yerevan, Armenia October 26, 2020. Picture taken October 26, 2020. REUTERS/Maria Tsvetkova

The Banjarmasin Diamond, c. 1875, is displayed at the Rijksmuseum in Amsterdam, Netherlands October 10, 2020. Picture taken October 10, 2020. REUTERS/Piroschka van de Wouw

The Banjarmasin Diamond, c. 1875, is displayed at the Rijksmuseum in Amsterdam, Netherlands October 10, 2020. Picture taken October 10, 2020. REUTERS/Piroschka van de Wouw

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond, before an upcoming Geneva auction, during a Sotheby's preview in Hong Kong, China October 12, 2020. REUTERS/Tyrone Siu

The Spirit of the Rose, the world's largest vivid purple-pink diamond, is seen on display before an upcoming Geneva auction, during a Sotheby's preview in Hong Kong, China October 12, 2020. REUTERS/Tyrone Siu

A model poses with "The Spirit of the Rose", the world's largest vivid purple-pink diamond, before an upcoming Geneva auction, during a Sotheby's preview in Hong Kong, China October 12, 2020. REUTERS/Tyrone Siu

The Spirit of the Rose, the world's largest vivid purple-pink diamond, is seen on display before an upcoming Geneva auction, during a Sotheby's preview in Hong Kong, China October 12, 2020. REUTERS/Tyrone Siu

A buyer inspects a diamond at Rapaport Auctions in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A diamond dealer working for Stargems sorts uncut stones at Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A technician inspects a diamond while polishing a stone at Almas Diamond Services in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A 14-carat diamond is seen at Almas Diamond Services in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A technician inspects a diamond while polishing a stone at Almas Diamond Services in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Diamond dealers working for Stargems handle uncut stones at Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Buyers inspect diamonds at Rapaport Auctions in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Filip Hendrickx, manager of Almas Diamond Services, surveys an uncut stone, at Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A diamond dealer working for Stargems sorts uncut stones at Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A diamond dealer working for Stargems handles uncut stones at Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A technican polishes a diamond at Almas Diamond Services in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A buyer inspects diamonds at Rapaport Auctions in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

A buyer inspects diamonds at Rapaport Auctions in the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Ahmed Bin Sulayem, executive chairman of Dubai Multi Commodities Centre (DMCC), poses for a photograph at the Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Uncut diamonds are seen at Stargems in Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Uncut diamonds are seen at Stargems in Dubai Diamond Exchange in Dubai, United Arab Emirates, September 24, 2020. Picture taken September 24, 2020. REUTERS/Christopher Pike

Steiros Illias, the captain of the stricken oil tanker New Diamond, sits in a car after appearing in the chief magistrate court in Colombo, Sri Lanka , September 28, 2020. REUTERS/Dinuka Liyanawatte

Steiros Illias, the captain of the stricken oil tanker New Diamond, is seen at the chief magistrate court in Colombo, Sri Lanka , September 28, 2020. REUTERS/Dinuka Liyanawatte

Steiros Illias, the captain of the stricken oil tanker New Diamond, is seen at the chief magistrate court in Colombo, Sri Lanka , September 28, 2020. REUTERS/Dinuka Liyanawatte

Steiros Illias, the captain of the stricken oil tanker New Diamond, is seen at the chief magistrate court in Colombo, Sri Lanka , September 28, 2020. REUTERS/ Dinuka Liyanawatte

Diamond and Silk, center, look on as U.S. President Donald Trump delivers remarks on Black Economic Empowerment during an event at the Cobb Galleria Centre in Atlanta, Georgia, U.S., September 25, 2020. REUTERS/Tom Brenner

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 Sam Kendricks and Cole Walsh of the U.S., Sweden's Armand Duplantis and Belgium's Ben Broeders take a selfie after the men's pole vault REUTERS/Ibraheem Al Omari

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 France's Renaud Lavillenie reacts after the men's pole vault REUTERS/Ibraheem Al Omari

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 Sweden's Armand Duplantis celebrates winning the men's pole vault REUTERS/Ibraheem Al Omari

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 Sweden's Armand Duplantis in action during the men's pole vault REUTERS/Ibraheem Al Omari

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 Sweden's Armand Duplantis celebrates winning the men's pole vault REUTERS/Ibraheem Al Omari

Athletics - Diamond League - Doha - Qatar Sports Club Stadium, Doha, Qatar - September 25, 2020 Sweden's Armand Duplantis celebrates winning the men's pole vault REUTERS/Ibraheem Al Omari