Okay... so... I did not want to assume it was YG, but I had a hunch which is why I brought it up. And yes, it looks 1980s to me which is why I made that comment about YG and diamonds.
I think any piece over $100K, all diamonds only, should be set in platinum. Otherwise, to me, it looks dated and a bit like costume jewelry set in YG which I know it is not. That's just me, and I want to share it for another point of view on choice of metal.
I think if you love the design, get it. But honestly, based on what you wrote, it sounds like you like it more because it's cheap. I think if you love it because it's a good price, I would not dive in. I honestly think the price is cheap because it is YG and 1980s, but some people like that look and you might love it. My honest opinion though... YG and all diamonds is not a great look for this type of necklace. WG is at least better, but platinum is the reference. Again... my opinion only to help see a different point of view. I am sure Joan Collins would disagree with me.
Can you splurge and go for the Snowflake?

It is pure awesomeness and looks so good on... it's thick and bold, yet it is also airy and artistic. I have zero place to wear that necklace, and I am not shy about wearing blingy jewelry. But if I did have places where I would wear that necklace regularly (e.g. not just going to a show/play/symphony), I would sacrifice buying other pieces and get it.