Diamonds are a girl's best friend, and for park visitor Bobbie Oskarson of Longmont, Colorado, it was an especially beautiful day when she found an 8.52-Carat diamond at the Arkansas Crater of Diamonds State Park on Wednesday.

The icicle-shaped gem is so far the fifth-largest diamond found by a park visitor since 1972, as noted by CNN. Oskarson discovered the treasure, which she initially thought as a quartz crystal, around the the 37-acre search field called Pig Pen. 

Waymond Cox, the park interpreter said in a release, "Ms. Oskarson and her boyfriend Travis Dillon saw the Crater of Diamonds State Park on an Arkansas highway map while in the nearby town of Hot Springs and decided to visit the park. And what a lucky first visit it was for her!"

He also described the gem the size of a quarter as "absolutely stunning, sparkling with a metallic shine, and appears to be an unbroken, capsule-shaped crystal. It features smooth, curved facets, a characteristic shared by all unbroken diamonds from the Crater of Diamonds."

Oskarson intends to keep her newfound treasure and named it the Esperanza diamond, after her niece. Esperanza is also the Spanish word for "hope." 

The 8.52-Carat find was the 227th diamond certified by park staff this year alone, according to Business Standard. 

More than 75,000 diamonds have already been unearthed at the Crater of Diamonds State Park. As stated on MyFox8.com, the largest ever found was the Uncle Sam Diamond, which weighed 40.23 Carats, was found in 1924. 

The search area at the Crater of Diamonds is open for the public, and visitors can hunt for gems, as the park has a "finders keepers policy." In order to ensure that the gems visitors are taking have value, park staff are ready to help identify and register diamonds, even providing instructions on how to recognize the stones in their rough and uncut state.

The park's website also provided several tips on how to identify a real diamond, and this may come in handy for those who are planning to visit the area any time soon. For example, based on appearance, "Diamonds feel like they have an oily film on them. This characteristic prevents diamonds from being dirty. Diamonds have a metallic luster like new steel or lead. They will not be clear like glass. They do not have a solid dull look like the jasper. Diamonds are translucent. You can typically see into them but not through them."