An engagement ring is a woman's most prized possession, so naturally it should be personal. These 15 blinged out rings appeal to both of a girl's stylish and nerdy side.

1. This R2D2 Engagement Ring

This robot ring is constructed in either sterling silver or white gold, with sapphire baguettes surrounding a brilliant Round diamond. While this Star Wars-inspired ring is gorgeous, I don't suggest asking her to marry her in a Yoda voice though.

2. This DNA Engagement Ring

This DNA ring is a part of a whole line that was designed to honor the "most organic material at the root of our existence." This diamond-lined double helix DNA ring may turn your girlfriend into your MRS.

3. This Stargate Wedding Band

This incredibly detailed Stargate-inspired ring is unisex, making it perfect for you and your #1 nerd to both sport. Crafted out of gold and platinum, this ring even features spinning chevrons.

4. This Pokémon Engagement Ring

This diamond crusted Pokéball is composed of white gold, diamonds, rubies, and created sapphires. You can choose between a Round diamond, emerald, sapphire, or tanzinite as the featured center gem. If you're a Pokémon fan, this is the perfect way to tell your girl that you don't want to catch 'em all anymore.

5. This Dr. Who Police Box Engagement Ring

This adorable Tardis-inspired ring is composed of sterling silver set with diamond stones to represent the "Police Public Call Box" sign at the top, two baguettes to represent the windows, and a Princess cut stone to symbolize the optional instructions to pull open. You can also get an adorable Tardis Ring Box to propose with! This beauty is perfect for the geek in your life that you want to spend beyond the end of the universe with.

6. This Kokiri Emerald Engagement Ring

This $2480 Zelda-inspired ring is composed of 14K gold and an emerald solitaire. The pattern on the surface represents Zelda's continuous journey and the emerald, of course, is the spiritual stone of the forest. You can even get a cute little treasure chest to use as a ring box. This ring is the perfect reminder to the nerd you love: it's dangerous to go alone, take me!

7. This Golden Snitch Engagement Ring

This Harry Potter-inspired Snitch ring is perfect for the Muggle in your life. Composed of 18K white gold, moissanite, golden topaz, and a yellow sapphire center stone, this ring could represent you and your nerd's "Unbreakable Vow."

8. This Star Trek Insignia Engagement Ring

This 14K gold ring features 5 diamonds to complete the perfect "Shooting Star" ring. If the geek in your life is a Star Trek fan, it would be highly illogical not to propose with one of these guys.

9. This Red Light Saber Engagement Ring

Designed by SwankMetalSmithing — *Designed by* *SwankMetalSmithing*

These Star Wars-inspired his & hers rings are perfect for Darth Vader fans everywhere. Made with sterling silver, rubies, and black and white diamonds, these Light Saber engagement rings are the perfect way to ask the one to be your Darth lady forever.

10. This Arc Reactor Engagement Ring

This Iron Man-inspired ring is composed of 14k white gold, black rhodium, aquamarine and Princess cut diamonds. With this Arc Reactor ring, you can ask the Pepper in your life to be with you forever.

11. This Disney-Inspired Engagement Ring And Wedding Band

What girl doesn't love a little Disney? This white gold, black diamond, and multi-colored gem stone engagement ring and band is the perfect ring to ask the princess in your life to live happily ever after.

12. This Portal-Inspired Engagement Ring

This adorable custom-made ring will ensure that your love will be your companion [cube] forever!

13. This Lotus Engagement Ring

Obviously the previously mentioned Disney-inspired ring is any fan's favorite, the Lotus Ring is designed with Princess Tiana in mind. With its silver setting, gold accents, and green tourmalines and emerald gems, this ring is perfect for the girl that turned you from a frog to a prince!

-This designer has rings based on all of the other Disney princesses. They can be found here.

14. This Targaryen Engagement Ring

On a level of epicness, this Game of Thrones-inspired ring gives the Iron Throne a real run for its money. With 45 gems set in palladium, this big bauble features a giant, Round cut, red ruby. A ring truly fit for any queen.

15. This Steam Punk Engagement Ring

This beautiful ring is composed of sterling silver, 14k white gold, and a Round cut diamond. The devil is in the details with this ornate ring that features tiny gears to compliment the diamond. If you and your #1 are part of the Steam Team, then this is the ring for her.

15 Beautifully Nerdy Engagement Rings