I was reading the NR on the SNO site. The SNO NR has the following paragraph missing.
Processing of the remaining one-third of the DMS concentrate (518.8 kg) at the DeBeers macrodiamond laboratory in South Africa recovered an additional four diamonds weighing 0.34 carat. These stones were sieved on DTC sieves, with three diamonds recovered on the plus-five DTC sieve, and one diamond on the plus-seven DTC sieve. Further descriptions of these stones are pending.
I guess when they were putting it on the website someone accidentally skipped it.
BGT