Actress Sharon Tate's engagement ring, the ring presumably on her finger the night she was killed by Charles Manson's murderous family, will remain on the auction block.

The ring - an oval opal surrounded by garnet gems in a gold setting - was given to Tate by filmmaker Roman Polanski in 1967. It is will be up for grabs Nov. 30, with the bidding starting at $10,000.

The auction house Gotta Have It! Collectibles had to deal with a slight snafu in regards to the auction when Tate's sister, Debra, told TMZ that the actress did not have the ring on at the time of her death.

Debra told TMZ that Sharon had given the ring away to a family friend long before she was murdered in 1969. In fact, Debra stated that Sharon was not wearing any rings at all the night she was stabbed.

Because Sharon was pregnant, she couldn't fit any rings on her finger.

Debra insisted that the ring up for auction was not even an official engagement ring, but rather an unofficial symbol of her relationship.

The ring was not Sharon's style and she never wore it, she added. Instead, Debra claims Polanski gave Sharon an official gold and diamond band, which she treasured.

TMZ reported Wednesday that the Gotta Have It! Collectibles auction house received written confirmation from Polanski verifying the authenticity of the jewelry.

It was speculated that the ring was on Sharon Tate's finger at the time of death but never confirmed so we do not dispute Tate's sister Debra's claim, said a representative.

We do, however, have photographic proof of Tate wearing the ring and written confirmation from Roman Polanski stating that this was, in fact, the engagement ring that he gifted to his then-fiancée, Sharon Tate.

Adding, Gotta Have It! along with the consigner are 100% confident in the authenticity of the ring. There are no plans to pull the ring from the Gotta Have Rock and Roll Pop Culture auction as the consigner, who maintains ownership of the ring, is committed to its sale. 

The auction house has been anticipating the sale of the ring, particularly due to the shroud of tragedy surrounding its former celebrity owner. 

Who knows where the bidding will end up. She was so beautiful and innocent, and very popular, said Pete Siegel of the midtown auction house to The New York Daily News.

It's a great item of Hollywood collectibles, he added.

The auction will start Nov. 30 and run through Dec. 9.

Sharon Tate was a popular actress in the 1960s, with her biggest hit Valley of the Dolls earning her a Gold Globe nomination.

Tate married director Roman Polanski in 1968 and was eight and a half months pregnant the night she was murdered in her home, along with two friends. Tate was stabbed be the Manson family sixteen times. Her body was found in the living room of her Los Angeles home. 

Click the right arrow located in the photo box on the left hand side of your screen to see the ring.