When you buy diamond certificates and invoices, you don't have to worry that your diamond ring is fake, because every diamond ring has a certificate; Your diamond ring holder is pt950 platinum. Because of its high purity, it looks softer. Don't worry about slight deformation. If the deformation is large, it will affect the diamond and make it loose, so it should be sent to the original seller for repair. If you use 750 gold as the ring holder, it should be hard, not easy to deform but easy to change color.