Infinity pendant 925 w/blue and white diamonds on 925 retailer dainty chain

Product Name: Infinity pendant 925 w/blue and white diamonds on 925 retailer dainty chain
The length of the pendant is 1 in. 3mm approximately and the widest width at the bottom is 1/2 in. The center cluster is 7 white diamonds, lower has approximately 12 white retailer diamonds, upper has at least 9 blue diamonds from counting the back holes. The jeweler did not measure the diamonds for me but verified the white and blue are both real diamonds. Another necklace I have looks the same size of diamonds as the center cluster and a jeweler noted 1.1 mm diamonds. I added a picture next to the measuring tape and I see 1 mm but I am not a jeweler. They could be 1.1. The picture is of the center cluster of 7 white diamonds. The blue diamonds are scattered and I think it's a dark blue background. It could be a black background. It's dark. The infinity pendant and chain are both marked 925 and weigh 3.54 g. The dainty chain is 18 in. I have other diamond pendants 8/2022 I post a variety of items and I post daily-kept in a clean smoke free home.