Rosie O’Donnell has no problem splurging for her love.  The talk show host, 49, told her audience on Monday that she was engaged to girlfriend Michelle Rounds, reports UsMagazine.com.  O’Donnell reportedly spent $100,000 for the engagement ring.  “The cushion cut center diamond is approximately 4 carats, and since it’s set in platinum, the diamond will be held more securely,” said jewelry expert Michael O’Connor. “There may be additional significance to the fact that the center diamond is surrounded by ’rounds’ set into a platinum collar.”

How do you know what style of engagement ring to buy your soon-to-be spouse?

Cupid’s Advice:

Picking out an engagement ring that suits your partner’s personality can be difficult.  Here are a few suggestions as to cut and style:

1. Solitaire:  The most classic and timeless engagement ring is the solitaire.  The solitaire has a single diamond set in a band of platinum, gold, white gold, or silver.  If your partner is traditional and elegant, this is the way to go.

2. High-Carat diamond:  If your partner is outgoing and charismatic, an engagement ring with a big, attention-grabbing diamond may be the correct choice.  However, big diamonds of a high quality are extremely expensive.  If you’re facing tough economic times, consider cubic zirconia as an alternative to a diamond.

3. Brand name:  If your partner loves fashion, a brand name ring may be her preferred choice.  A ring from Tiffany & Co. or Cartier will be sure to please her.

How did you pick out your spouse’s engagement ring?  Feel free to leave a comment below.