Badshahi Angti - Courtesy: Chand Begum Jewellers, New Delhi	The ‘Badshahi Angti’, belonging to the Mughal emperors especially Aurangazeb – a ring studded with emerald and ruby, surmounted by a big diamond in the centre and mounted in gold. Of all cases that Feluda solved, this was one where he had a very close brush with death., New Delhi
Blue Beryl	Kailash Chowdhury’s blue beryl. The name beryl comes from the Sanskrit ‘veruliyam’, a name given to the compound or ‘beryllos’, a Greek word meaning crystal. Dark blue beryl was not discovered until 1976, so Mr Chowdhury’s beryl was light blue aquamarine as pictured above. This was one of Feluda’s earlier cases.
Yamantaka (Jamantak)	The very expensive ‘Yamantaka’ piece in ‘Gangtokay Gondogol’ made of solid gold and dotted with precious stones. Yamantaka is still prevalent in tantrism and literally means defeater of death. The deity had been an integral part of Mahayana Buddhism over millennia
	The 50 carat cut diamond in Baksho Rohosshyo that Feluda recovered from a Kodak film canister and was assaulted in Shimla to give it up. It finally went to the De Beers at an auction.
	The golden Ganesh of the Ghoshals in Joy Baba Felunath, for which Feluda’s arch enemy Maganlal Meghraj was prepared to pay 30,000 rupees, cash in 1977 and which was hidden in the king of the jungle and Bikash Singha’s radio.
Naulakha belonging to Nana Saheb	Life Divine   The Naulakha necklace once belonging to Dhondu Panth aka Nana Saheb and usurped by the Nepalese king, featured in Bombaiyer Bombetey, smuggled through Jatayu in Sri Aurobindo’s Life Divine. This motif i.e. the concealment of an object by cutting out pages in a book had been encountered in detective fiction before in The Solitary Cyclist, a Sherlock Holmes adventure. Also, Aurobindo himself devised a similar ploy to smuggle a pistol inside the Gita to Kanailal Dutta and Satyen Basu to assassinate the state turned witness for the Muraripukur bomb case Naren Goswami.
Emperor Jahangir’s zodiacal gold mohur featured in Jahangirer Swarnamudra. Minted in 1619 AD, the inscriptions read : 'The surface of gold was decorated at Agra by Jahangir Shah, son of Akbar Shah'.
	The pink pearl in the Golapi Mukto Rohosshyo. Feluda had his third and final brush with Maganlal Meghraj for this gem. The value was determined by the naturalness of the pearl and later sold. Agatha Christie’s detective duo Tommy and Tuppence solved a mystery relating to a pink pearl.
	The Narayani Mudra as described in Royal Bengal Rahashya, the treasure unearthed in the temple of Kata Thakurani just before the appearance of the tiger
	Robertson’s Ruby looted by Captain Robertson, officer commanding a detachment of the 93rd Scottish Highlanders during the relief of Lucknow,1858 and brought back to India by his descendant. This was one of Feluda’s last cases
The diamond studded Shakuntalar Kantahar worn by the famous Anglo Indian actress of the silent cinema Virginia Reynolds aka Shakuntala of the family of Captain Thomas Reynolds