A ring for my mum

[Klee_Bee]

Hi everyone! I need your precious help to find a stone for my father. He will have 30 years of wedding anniversary and would like to give my mother a ring and I would like to help him find a beautiful stone. He would like a round cut stone with the best possible cut for his budget. For sizes from 0.7 to 1 ct, color not below G and clarity not below vs2. The budget would be around 300 usd, do you think it's possible to find something? Thank you in advance for your help!