In Jennifer Lopez's style book, diamonds are hardly a girl's best friend. The title actually belongs to the Birkin bag.

Birkin bags are plural. The boxy leather top-handle tote that Hermès introduced in 1984 in honor of French actress Jane Birkin became Jennifer Lopez's calling card 40 years later. For the past 365 days, Jennifer Lopez's milestones and news stories have always included the Birkin. The Birkin for graduation, the Birkin for house hunting, the Birkin for bike riding in the Hamptons. She also has the ultimate designer bag: a Birkin for the gym. Jeans and button-ups, work dresses, and monochromatic sweater sets. The end effect is always the same. Given the popularity of the bags and her exotic versions, Lopez's collection appears to be the definition of luxury.

In honor of her impressive catalog and all the creative ways she has styled it over the past year, I have taken the liberty of ranking Jennifer Lopez's 2024 Birkin bag from rarest to rarest. I organized them based on their value on the luxury consignment market and how often Lopez carries the bag. And while I have to admire her equally rare wicker Kelly bag and her extensive vault of Lady Dior purses, this list is entirely devoted to the Birkin.

“Love Don't Cost a Thing,” but her bag collection comes with quite a receipt. And by the time you hit “Publish” on this article, Lopez may have a brand new Birkin exclusively for herself. After all, she just went Hermes shopping.

Let's start with Jennifer Lopez's Birkin bag collection of luxury crewneck T-shirts. It's a black Birkin 35 in classic leather. (Not having seen the bag up close, it's hard to determine whether her style is one of Hermes' three more typical leathers, Togo, Epson, or Clemence.)

This is what Hermes experts call a standard Birkin: no exotic skins, no limited edition features like the rare Shadow Birkin, Cargo Birkin, or Gillies Birkin; many listed on resale sites such as Fashionphile between $12,000 and $15,000.

Nevertheless, it is a special bag in the wide world of designer tote bags. Jennifer Lopez treats hers like a prestigious must-have that can be paired with either a run-of-the-mill loungewear outfit or a more luxurious leopard coat. She also paired it with a revamped top like Leo's.

For you and me, the Birkin bag in creamy beige with silver hardware is a once-in-a-lifetime accessory. For Jennifer Lopez, it would be a designer tote bag for everyday use. According to Handbag Clinic, the scratch-resistant grain leather used for this style is a more standard offering in the Hermes handbag lexicon. The silhouette of the Birkin 30 is also more common than the smaller Birkin 25 (the domain of prestigious clients like J.Lo). She recently styled this one in a relatively understated way, along with a Tod's trench and jeans, to shop at Hermes' Beverly Hills flagship store.

This is the second most carried Birkin bag in Jennifer Lopez's archives, according to my unofficial tally. In the past year alone, Marie Claire has featured this bag with a T-shirt and naked shoes, a beige sweater set, flared jeans and trench, Ugg boots and cable knit sweater, and a HIIT-ready loungewear set. (The smaller size and exotic materials send appraised values soaring; some albino croc Birkins, like J.Lo's, fetch around $20,000, while others fetch $80,000 or more. One can only wonder what kind of patina has developed on Lopez's, given the proximity of her workout equipment.

When this Birkin bag first appeared on J.Lo's arm in May 2024, it had earned about $20,000 at resale. In December, it will cost nearly $39,000. The beauty of the Hershey-dyed exterior and the sparkle of the gold hardware is enough to make serious collectors at least consider investing. Lopez styled it like a real go-to bag, pairing it with Saint Laurent pointed-toe boots and a nude-colored glitter coated shirt.

Talking about palettes, this is the trendiest of Lopez's Birkin bags. The deep, rich brown was the designer's favorite shade for the Fall 2024 runway collection (and vintage stars like Haley Bieber have been pulling from the archives lately). If the singer coordinates her bags with that year's Pantone hue, we could see a light, “mocha-mousse” bourquin swinging from J.Lo's arms by January.

The second of Jennifer Lopez's four crocodile birkin bags is a rich caramel brown. (It is a little less subtle in its neutrals than her black and white croc bag, but just as valuable. A similar style is currently valued at about $55,000 on the luxury consignment market.

Even more shocking than the price is her styling. One day Lopez wears a white button-down and flared jeans, the next she wears destroyed denim and naked heels.

A shiny black croc Birkin 25 can fetch up to $89,500 in some markets. And then there's Jennifer Lopez. Her black croc bag was brought to business meetings where I would expect to see at least a five-figure designer purchase, like one paired with a gray work dress. But she also found ways to style her collection in totally unexpected ways, like with jeans and a blazer (as in the look above) or with a flowing black sundress in the Hamptons. Only a woman house hunting in a Brentwood palace could have transformed this rare bag into a pseudo beach bag. Respect.

Jennifer Lopez doesn't wear cargo pants, but she does carry a cargo bag. The Cargo Birkin, or sorry, Birkin Cargo 25 Twirl Gerland/Vaux Swift Bag, is the newest addition to her wardrobe. She paired this bag with her usual off-duty uniform of flared jeans, fur-trimmed jacket, and platform Uggs in May 2024. The bag made another appearance seven months later, in December, when she paired it with Free People barrel jeans and a gauze top for a trip to the farmer's market. (Again, a clothing formula.)

Make no mistake, J.Lo pairs pocket-coated bags with more down-to-earth, practical pieces. According to Christie's, Hermes began introducing the functionality-focused Cargo Birkin in 2020. It has five exterior pockets, some with leather-lined cup holders. Lopez's 2024 version seems to have no such features, but it does have the same amplified storage as the military pants that gave her new look its name. The only question that remains: how many nude-colored lip glosses will it hold?

Seeing Jennifer Lopez with her Himalayan croc Birkin might make all three wishes come true and keep her lucky forever. The bag is the crown jewel of her collection and, in the words of luxury auction house Madison Avenue Couture, the “holy grail” of all Birkin styles.

The Himalayan Birkin gets its name from the white niloticus crocodile leather, hand painted and ombre-dyed a smoky gray exterior that resembles the frost-covered peaks of Mount Everest. Each one is like a snowflake: no two Himalayan Birkin have exactly the same dye pattern. According to Sotheby's, Hermès introduced its first bag with this finish, the Kelly, in the 1990s. It was not until the mid-2000s that Hermès introduced the rare Himalayan-finished Birkin. Today, only very limited quantities are produced, and they can fetch at least $100,000 at retail. Naturally, it is already one of the most popular bags in the exclusive lineup.

When Jennifer Lopez carries her Himalayan Birkin, its flamboyant, luxurious power is at its peak, as in the look she wore for the press in New York in February 2024, either over an oversized fur coat or a monochromatic, blizzard-white loungewear Match. (Nothing “looks richer” than a $500,000 handbag paired with a pair of well-loved sweatpants.) No one would call her styling of a white Birkin on white camouflage. This is a bag that refuses to blend in.