(£4.9 million, €7.1 million, 374.9 million rupees, C$9.8 million, A$11.5 million)

Macho Guy Equivalent: 30,249 boxes Partagas Limited Reserve Robusto cigars

Say, these will make her ears ring--and the cash register, too. The House of Winston really knows how to dress up the extremities, as these glittering Extraordinary Diamond Drop Earrings prove. As simple as icicles, yet a lot longer lasting, each will set her lobes glimmering with two pear-shaped diamonds in a platinum setting. That's 60.1 carats all together, and all of it stunning.

Macho Guy Equivalent: Two '66 Ford GT 40s--if you can find them

A virtual cascade of white and green, this Magnificent Diamond and Emerald Necklace from Chopard's "Haute Joaillerie" collection will keep all eyes on your sweetheart, whatever the occasion. There are 191-carats worth of Columbia's most beautiful emeralds on there, completely set by 16 carats of rose-cut and drop-shaped diamonds. Though officially "price upon request," you should figure on spending $3 million-plus.

(£1.1 million, €1.7 million, 88.2 million rupees, C$2.3 million, A$2.7 million)

Macho Guy Equivalent: 15 '06 H1 Alpha Open Top Hummers

With its forte in colored diamonds already set in stone, Leviev continues to up the ante on hue with this Fancy Vivid Pink, Fancy Deep Pink and White Diamond Necklace, including a whopping 97.9 carats in pear-shaped and round, brilliant cuts. It took more than a year to find and piece together the rare stones in platinum--but by its looks, the piece was obviously worth the wait. Look for the new Leviev flagship store opening on Old Bond Street in London this spring.

(£1.1 million, €1.7 million, 88.2 million rupees, C$2.3 million, A$2.7 million)

Macho Guy Equivalent: 22 guided climbs up Mt. Everest, including extra oxygen and tips

We could think up a lot better uses for Graff's Fancy Deep Blue Diamond Ring than a mere Valentine's Day gift--for instance, a proposal--but given the season, it'll have to do. The blue hue is the key to the diamond's cache and price, as fancy diamonds of such deep blue color are extraordinarily rare. Chiseled with a striking emerald cut, the 2.4-carat diamond is set in platinum amidst white diamond-tapered baguettes.

(£700,000, €1.1 million, 57.3 million rupees, C$1.5 million, A$1.8 million)

Macho Guy Equivalent: Prewar Classic Six Co-op on Park Avenue in Manhattan

Showstopper or credit-limit topper? Either way, Tiffany's Majestic Diamond Necklace will be center stage wherever it's displayed. With a fluid design that lies softly on the neck--and really, what other way is there?--this glittering choker evokes breathtaking glamour, with a 41.4-carat, pear-shaped diamond accompanied by a multitude of round and pear-shaped diamonds. Each stone is top-of-the-crust in color and clarity, of course, as is the pretty blue box it comes in.

(£600,000, €900,000, 48.5 million rupees, C$1.3 million, A$1.5 million)

Macho Guy Equivalent: 147 cases of Macallan 30-Year-Old Single Malt Scotch (Highlands)

Here, kitty-kitty. Make her purr on Valentine's Day with this one-of-a-kind Panther Brooch from the House of Cartier. Part of the High Jewelry Collection, the piece captures Cartier's most recognizable symbol through a gallimaufry of precious stones, including a 65.9-carat Ceylon sapphire; 102 Cabochon sapphires totaling 10.7 carats; 868 brilliant diamonds totaling 16.4 carats; and two emerald eyeballs weighing 1.1 carats, all set in 18 karats white gold and platinum.

(£1.1 million, €1.6 million, 83.8 million rupees, C$2.2 million, A$2.6 million)

Macho Guy Equivalent: 93 '06 Harley-Davidson Ultra Classic Electra Glides

There are two types of watches at the high end of the dial: those that intrigue with complications, and those that dazzle with jewels. For Valentine's Day, we feature one of the latter just for her. Part of Chanel's globe-hopping Collection Privee, the D-Flawless Bracelet Watch is arrayed in 18-karat white gold with 120 cultured pearls of 6 millimeters to 6.5mm diameter, and 133 diamonds for a total weight of 35.1 carats, including 32 brilliant-cut diamonds of 1 carat per. Oh, and it tells time, too.

(£600,000, €800,000, 44.1 million rupees, C$1.2 million, A$1.4 million)

Macho Guy Equivalent: 34 top-of-the-line Kiton "Made to Measure" suits

When it comes to standing out on the red carpet, Hollywood's elite turns to Neil Lane. Known for his one-of-a-kind diamond creations, the L.A.-based jewelry designer is currently a Brand Ambassador for DeBeers, a job he describes as a lot of "parading around." This elegant, Edwardian "festooned" piece, which is part of a necklace-and-earring set, includes 175 EDF flawless white diamonds for a total of around 50 carats. Throw in another 5.63 carats per earring, set it all in platinum, and she'll definitely be ready for her close up!