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Reply to: Evidence for two blue (type IIb) diamond populations

The Original Article was published on 12 June 2019

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Fig. 1: Additional features consistent with a sublithospheric origin for the large 24.18-carat blue type IIb diamond (sample 110208093607, from the Premier kimberlite pipe at the Cullinan mine).

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Acknowledgements

We thank T. Stachel for constructive peer review and B. Luth for discussion on mineral stability.

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E.M.S. prepared the manuscript with contributions from S.B.S., S.H.R. and F.N., and expert approval from E.S.B., J.W. and W.W. All authors were involved in this Reply.

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Correspondence to Evan M. Smith.

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Smith, E.M., Shirey, S.B., Richardson, S.H. et al. Reply to: Evidence for two blue (type IIb) diamond populations. Nature 570, E28–E29 (2019). https://doi.org/10.1038/s41586-019-1246-8

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