Diamond birthday: woman in a sparkly dress showing her earring with balloons on the side

Your diamond birthday — also known as a platinum birthday — is when your age matches the last two digits of your birth year. For example, if you were born in 2010, your diamond birthday is when you turn 10 years old. If you were born in 1981, your diamond birthday is when you turn 81 years old. 

Diamond birthdays are a fun way to add a little extra pizzazz to a birthday celebration. Like a golden birthday — when your age matches the day of the month you were born — this celebration is easy to plan because it has a built-in theme. 

Read on to find fancy ways to celebrate your diamond birthday — from party decor to outfit inspiration. Plus, we’ve included invitation inspiration so you can easily get your friends excited about the upcoming bash.

9 Dazzling Diamond Birthday Ideas

Diamond birthday: cupcake with a ring on top of it

Celebrate your diamond birthday in style! Whether you’re decorating a fancy venue or a room in your own home, these birthday party ideas are sure to dress up your special event.

1. Use a Silver Color Scheme

Pair your diamond decor with a silver color palette to add elegance and glam to your big day. Incorporate silver hues into the balloons, tablespreads, food, and your digital invitations. If silver isn’t your favorite, consider a rose gold or gold theme with gold streamers and balloons instead. 

2. Write Your Name in Diamonds

Go all out and spell your name in diamonds to greet guests at the start of a fancy fete. Order shimmery diamond-shaped stickers and put them together to write out your name. Alternatively, you can order a custom Swarovski crystal sign of your name and display this on the entry table where guests can leave gifts.

3. Get a Blinged Out Birthday Cake

Take your birthday celebration to new heights with a diamond-shaped birthday cake. Bake it yourself so you can use your budget on more decor, or hire a bakery to create a custom design for you. 

If you choose to DIY the cake, TikTok has tons of diamond cake video tutorials you can use to create your dream dessert. Alternatively, you can choose a silver birthday cake and use diamonds as cake toppers for added shine.

4. Wear Stunning Jewelry

Give yourself an early birthday gift and pick out a special piece of diamond jewelry that you can wear to the party. Choose from a nice pair of diamond earrings, a tennis bracelet, or a necklace — whatever you’ve had your eye on! 

If you want to deck yourself out in diamonds without breaking the bank, choose costume jewelry instead. Wear multiple pieces or choose a more eye-catching item like a diamond-encrusted tiara.

5. Host a Shimmering Pool Party

If your dream birthday involves soaking up the sun and summer bday vibes, you can still incorporate a diamond theme into the big day. Ditch the typical frosted diamond theme, and instead, brighten things up with colorful diamond gem decor to mimic the look of lab-created pink and yellow diamonds. 

Add diamond ring pool floaties to make the day more fun. Serve cocktails in diamond-encrusted glasses, and ask your guests to wear their best diamond-inspired swimwear.

6. Play Diamond-Themed Games

Lean into the theme by adding diamonds to your activities! Hire a gemologist to give a presentation on diamonds and carats, or play trivia about diamonds. You can create your questions by looking up fun facts about where diamonds are sourced and how they’re made. You can even quiz your guests about celebrity diamonds. 

Here are some questions you can use for inspiration: 

  • What shape is Selena Gomez’s engagement ring?
  • How many carats was Jennifer Lopez’s second ring from Ben Affleck?
  • How many diamonds did Taylor Swift wear to the Grammys?

7. Set the Scene With Elegant Lighting

Add magical ambiance by decorating the event space with glittering balloons. Look for light-up LED balloons in soft white for an elegant look. For a boho vibe, set out diamond-shaped terrariums with string lights to match the theme.

8. Decorate With Silver Tablescapes

While you can’t put diamonds everywhere, you can incorporate silver into just about any table decor. Line the tables with silver beaded runners or tablecloths. Use real silver serveware and glasses for a regal look. Set out silver napkins, and use silver vases to hold fresh bouquets of flowers. For added shine, use silver glitter spray to coat branches and flowers like white roses.

9. Wear Attire Dripping in Diamonds

Frost yourself by choosing a birthday outfit that’s decked out in silver glitter or fake diamonds. Mirror dresses play perfectly with the silver theme, while dresses with gemstones match the look of diamonds without costing a fortune. A silver dress in satin offers an understated way to shine on your big day.

4 Exquisite Diamond Birthday Invitations

You’re excited about your special diamond birthday party, and now it’s time to get everyone else counting down the days to the big event too! With diamond birthday invitations from Greenvelope, you’ll find the perfect way to match your party theme and ensure guests will hit “Yes” on their RSVPs. Here are some of our favorite diamond birthday invites for inspiration.

1. Shimmering Deco Diamond Invitation

Diamond birthday: Shimmering Deco Diamond Invitation

Design: Claudia Owen

With this shimmering invite, you can put your diamond theme front and center. A geometric diamond text box displays all of the important event details, and rays of glitter explode in the background. The supported backside leaves lots of room for more details, like the party activities, dress code, and gift suggestions.

2. Colorful Gem Invitation

Colorful Gem Invitation

Design: Snow and Ivy

If you’re planning a summer-inspired diamond birthday party, this colorful invite infuses joy into the celebration. Featuring a colorful gem as the border of your event details, it’s the perfect way to set the tone for a lighthearted celebration.

3. Glitter Paint Invitation

Glitter Paint Invitation

Design: Claudia Owen

Use this silver birthday invitation to match the theme of your silver-inspired diamond party. Guests will be counting down the days until they can say “happy birthday” at your special event surrounded by glittering gems and silver decor. 

If silver isn’t your first choice, the invite comes in several colorways — including gold, turquoise, black, and copper — or use the color wheel, which makes it easy for you to pick the perfect color palette. 

4. Crystal Brooch Invitation

Crystal Brooch Invitation

Design: Colin Cowie

Opt for elegance with this milestone birthday invite featuring a satin ribbon and diamond brooch. Elegant typography and a decorative liner elevate the look of this invitation, and there’s plenty of room on the front and backsides for your event details.

Celebrate a Diamond-Encrusted Birthday With Greenvelope

With these diamond birthday party ideas, you have what you need to plan an unforgettable celebration of this milestone. From outfit ideas to decor and activities, there’s inspiration for everything on your birthday planning to-do list.

When you’re ready to invite guests, browse our selection of birthday party invitations, which feature hundreds of different styles and plenty of diamond-inspired options. From silver color palettes to templates filled with gemstones, there’s a look you’re sure to love. 

Plus, put your own spin on things by customizing the color palette, typography, and adding elements like wax seals or music to elevate the design.