Tiffany & Co, 'Tiffany Harmony' 1.05ct "Botswana Sort" platinum diamond ring. Featuring one claw set round brilliant cut Botswana Sort* diamond of known weight 1.05ct, F colour, VS1 clarity, excellent cut grade, as per Tiffany & Co diamond certificate 71027961/ W07160293, in a four claw setting on a plain band. Ring size J. Finished weight 4.92 grams. How does Tiffany define 'Botswana sort' * Botswana sort diamonds are responsibly sourced from select mines in Botswana, Namibia, South Africa and Canada. Tiffany has a zero-tolerance policy towards conflict diamonds.