Yep, that's mine--I just fragged 13 pieces off it to pay for a court case I'm facing.
Be careful paying alot for watermelons. I have found most of them not to be what the seller says it it. Paid good $$$ for one & it turned out to be a purple Alien Eye. If you are paying a lot for a "named" chalice, ask for lineage.
I have a gorgeous large, purple Alien eye, Christmas chalice & a nice turquoise-green one. They are my favorite coral.
Here's a site to drool over:
http://zoaid.com/index.php?module=Gallery2&g2_itemId=5734