Fashion · Bengaluru, Karnataka
Cosmos Diamonds
A women-led lab-grown diamond jewellery brand with a full buyback.
Founded by Sanjana Tripuramallu
Snapshot
- Founded
- 2021
- Headquarters
- Bengaluru, Karnataka
- Industry
- Fashion
- Business model
- D2C
- Funding stage
- Bootstrapped
- Markets
- India
- Last updated
- 14 August 2026
About Cosmos Diamonds
Cosmos Diamonds is Sanjana Tripuramallu's bootstrapped bet on lab-grown luxury. Founded in Bengaluru in 2021, the brand sells lab-grown diamond jewellery built around transparency, heritage-inspired design and a hundred-percent buyback policy, with a design philosophy shaped by its women-led team and a customer base that is overwhelmingly female. It is competing in India's fast-growing value-luxury jewellery segment by treating price honesty and resale value as features, not fine print.
Founder
Sanjana Tripuramallu
Woman FounderFounder
Ideal customers
Jewellery shoppersWomen
Website, social
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Frequently asked questions
- What does Cosmos Diamonds do?
- Cosmos Diamonds is Sanjana Tripuramallu's bootstrapped bet on lab-grown luxury. Founded in Bengaluru in 2021, the brand sells lab-grown diamond jewellery built around transparency, heritage-inspired design and a hundred-percent buyback policy, with a design philosophy shaped by its women-led team and a customer base that is overwhelmingly female. It is competing in India's fast-growing value-luxury jewellery segment by treating price honesty and resale value as features, not fine print.
- Who founded Cosmos Diamonds?
- Cosmos Diamonds was founded by Sanjana Tripuramallu.
- Where is Cosmos Diamonds headquartered?
- Cosmos Diamonds is headquartered in Bengaluru, Karnataka, India.
- Is Cosmos Diamonds funded?
- Cosmos Diamonds is bootstrapped — self-funded rather than venture-backed.
- When was Cosmos Diamonds founded?
- Cosmos Diamonds was founded in 2021.