Rosh Boroumand
Co-Founder & Director | Banksy Specialist Rosh Boroumand co-founded GraffitiStreet in 2014 and brings over a decade of experience in the international urban contemporary art market. He advises collectors worldwide on authenticated Banksy artworks, rare editions and significant works by established artists including Invader and STIK. Based at GraffitiStreet's flagship gallery in Chichester, West Sussex, Rosh personally handles private acquisitions and specialises in provenance research, Pest Control-issued Certificates of Authenticity, edition history, condition assessment and the secondary market for blue-chip urban contemporary art. His expertise also informs GraffitiStreet's exhibition programme and his specialist research on Banksy's artworks, authentication and auction results for GraffitiStreet News.
87 articles published
Latest articles by Rosh Boroumand
June 11, 2026
Banksy’s Soup Can: Meaning, Editions and the Tesco Value Motif
Banksy’s Soup Can reimagines Andy Warhol’s Campbell’s Soup imagery through Tesco Value branding. GraffitiStreet explores the 2005 print’s meaning, edition structure, rare colour-ways, Pop…
June 7, 2026
What Is the Most Expensive Banksy Print Ever Sold at Auction?
The most expensive Banksy print ever sold at public auction is Girl with Balloon & Morons Sepia (2/8), which achieved £1,232,500 at Phillips…
June 7, 2026
How to Authenticate a Banksy: Pest Control, Provenance and Collector Confidence
A collector's guide to Banksy authentication, including Pest Control Certificates, provenance, ownership history, and the essential checks to make before acquiring a…
June 1, 2026
Banksy’s Girl with Balloon (Gold AP): Why This Rare Print Sold for Over £1.1 Million
Banksy’s Girl with Balloon Gold AP is one of the most valuable Banksy artist proof prints ever sold at auction. In March…
May 25, 2026
Highest Banksy Auction Prices: The 5 Most Expensive Banksy Artworks Ever Sold
The highest Banksy auction prices reveal the extraordinary demand surrounding one of the most influential contemporary artists of the 21st century. From record-breaking sales…
May 21, 2026
Banksy’s Girl and Balloon on Found Landscape Sells for $18 Million
Banksy’s Girl and Balloon on Found Landscape has officially entered the top tier of the artist’s auction history after selling for US $18 million…
May 18, 2026
Banksy Auction Results: The 10 Highest Prices Ever Achieved
Explore the highest Banksy auction results, from Love Is in the Bin to Game Changer and the artist’s record-breaking sales.
May 16, 2026
Banksy’s Girl and Balloon on Found Landscape Heads to Auction With $18 Million Estimate
Banksy Girl and Balloon on Found Landscape heads to auction on Wednesday with a US $16-18 million estimate at Fair Warning auction.
May 10, 2026
Banksy Shares Pete the Street Charity Print Inspired by London Statue
The Pete the Street Charity Banksy Print has gained international attention after Banksy shared the artwork on Instagram.
April 29, 2026
New Banksy Statue in London: A Suited Figure, a Billowing Flag, and the Edge of a Plinth
A new Banksy statue appeared on Waterloo Place in London on 29 April 2026 — a suited figure blinded by a flag,…
April 3, 2026
Banksy Secures Costs Victory as High Court Dismisses Libel Claim Linked to Guess Dispute
Banksy libel case costs ruling sees High Court order claimant to pay indemnity costs after failed claim linked to Guess dispute.
December 22, 2025
Wish Upon a Star: Banksy’s Identical Christmas Murals Shine a Light on Youth Homelessness, London
Banksy's Christmas mural appears in two London locations, using light, place, and timing to draw attention to youth homelessness.