The Texas hailing recording artist got engaged to rapper and music producer Future on Sunday (27 October) and couldn't resist showing off the size of her rock soon after.
On Monday, Ciara uploaded a picture of her new piece of jewellery on Instagram and it almost took our eye out.
Instead of posing with her ring on her finger, the 28-year-old placed the rock on what appeared to be a pink rose and zoomed in for a close up.
She sweetly captioned the photo: "@Future Forever My King. #HappiestGirlInTheWorld."
Future got down on one knee with the 15-carat ring just days after Ciara's birthday on 25 October.
But Ciara's birthday celebrations were still far from over yesterday, as she headed to her home-state of Texas to host a party for Moët Rosé this week.
And she accessorised with her new rock!
The '1, 2 Step' singer wore a gorgeous long black gown by Alon Livne for the occasion and we can just make out a bit of sparkle on her hand.
She and Future went public with their relationship earlier this year and have been inseparable ever since, with some recent reports even claiming that the couple are expecting a baby.
Neither Ciara or Future have commented on this rumour.
What do you think of Ciara's ring? Let us know, as the best comment each week wins £50!
Watch Future make a cameo appearance in Ciara's 'Body Party' music video below.