Diamond Ring Dessert Centerpiece

Featured in: Late-Night Cravings

This show-stopping dessert presents a layered vanilla sponge combined with rich white chocolate mousse, finished with a glossy mirror glaze that shines like jewels. Designed with a ring shape, it is chilled for hours to set perfectly. Decoration includes edible silver leaf and sparkling sugar pearls for celebratory flair. The process involves careful whisking, folding, and glazing techniques to achieve both texture and stunning appearance, making it ideal for elegant occasions.

Updated on Sat, 29 Nov 2025 15:24:00 GMT
A gleaming Diamond Ring Engagement Cake, layered with delicate mousse and shimmering silver accents. Save to Pinterest
A gleaming Diamond Ring Engagement Cake, layered with delicate mousse and shimmering silver accents. | snackandmack.com

A stunning, show-stopping dessert centerpiece inspired by the elegance of diamond engagement rings. This creative cake features layers of vanilla sponge, rich white chocolate mousse, and a sparkling jewel-like glaze, perfect for celebrations.

This recipe has become a favorite for celebrations I host, always impressing guests with its beauty and flavor.

Ingredients

  • Sponge Cake: 4 large eggs, 120 g granulated sugar, 120 g all-purpose flour, 1/2 tsp vanilla extract, 1/4 tsp salt
  • White Chocolate Mousse: 200 g white chocolate chopped, 300 ml heavy cream divided, 2 sheets gelatin (or 5 g powdered gelatin), 1 tsp vanilla extract
  • Mirror Glaze: 200 g white chocolate chopped, 150 g granulated sugar, 100 ml water, 100 g sweetened condensed milk, 8 g powdered gelatin, Food coloring (silver, pearl, or pastel tones)
  • Decoration: Edible silver leaf, Edible glitter, Sugar pearls or edible jewels

Instructions

Preheat:
Preheat your oven to 170°C (340°F). Grease and line a large ring-shaped cake pan or a standard cake pan with a small round cutter in the center to create a ring shape.
Sponge:
Whisk eggs and sugar in a stand mixer until pale and tripled in volume (about 8 minutes). Gently fold in sifted flour, vanilla, and salt. Pour into the pan and smooth the surface. Bake for 25 30 minutes or until a toothpick comes out clean. Cool completely.
Mousse:
Soften gelatin in cold water for 5 minutes. Melt white chocolate over a bain-marie or in the microwave. Heat 100 ml cream to just simmering then dissolve the gelatin in it. Pour over melted chocolate stirring until smooth. Cool to room temperature. Whip remaining cream to soft peaks and fold into the chocolate mixture with vanilla.
Assemble:
Slice the cooled cake horizontally into two layers. Place the bottom layer in a clean ring mold (or springform pan) spread half the mousse add the top layer and cover with remaining mousse. Smooth the top and freeze for 2 hours.
Glaze:
Soften gelatin in cold water. Combine sugar water and condensed milk in a saucepan bring just to a boil then remove from heat. Stir in gelatin to dissolve then pour over white chocolate. Let sit 2 minutes then blend until smooth. Add food coloring for a jewel-like sheen. Cool glaze to 32°C (90°F).
Decorate:
Remove cake from freezer and unmold onto a wire rack. Pour mirror glaze evenly over the frozen cake letting excess drip off. Decorate immediately with edible silver leaf glitter and sugar pearls to mimic a diamond rings sparkle.
Chill:
Chill the finished cake in the refrigerator for 1 hour to set. Slice and serve.
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Making this dessert always brings joyful moments with friends and family as everyone marvels at the stunning presentation and delicious taste.

Required Tools

Stand mixer or hand mixer ring cake pan or springform pan mixing bowls saucepan wire rack offset spatula thermometer (for glaze)

Allergen Information

Contains eggs dairy and gluten (wheat) May contain soy (in some chocolate) Check all decorations for nut and gluten traces if allergies are a concern

Nutritional Information

Calories 410 Total Fat 23 g Carbohydrates 47 g Protein 6 g

This Diamond Ring Engagement Cake showcases layers of white chocolate, creating a dazzling dessert for special events. Save to Pinterest
This Diamond Ring Engagement Cake showcases layers of white chocolate, creating a dazzling dessert for special events. | snackandmack.com

This diamond ring cake will be the centerpiece of any celebration bringing elegance and exquisite flavor together.

Recipe FAQs

How is the ring shape achieved in this dessert?

The ring shape is created by baking the sponge cake in a ring cake pan or by using a small round cutter in the center of a standard cake pan.

What gives the glaze its jewel-like shimmer?

The mirror glaze combines white chocolate with gelatin and food coloring in silver or pearl tones to create a sparkling, reflective surface.

Can this dessert be prepared ahead of time?

Yes, the assembled dessert is frozen and chilled for several hours to set the mousse and glaze properly before serving.

What ingredients provide the mousse’s creamy texture?

White chocolate combined with whipped heavy cream and softened gelatin creates a smooth, airy mousse layer.

Are there suggested decoration elements for added elegance?

Edible silver leaf, glitter, and sugar pearls or edible jewels enhance the dessert’s sparkling, luxurious appearance.

Diamond Ring Dessert Centerpiece

Layers of vanilla sponge and white chocolate mousse topped with a sparkling glaze and silver leaf highlight this elegant dessert.

Prep Time
40 min
Cook Time
30 min
Overall Time
70 min
Recipe by Snack And Mack Ryan Mitchell

Recipe Type Late-Night Cravings

Skill Level Hard

Cuisine Type Modern European

Output 10 Serving Size

Dietary Details Vegetarian-Friendly

Ingredient List

Sponge Cake

01 4 large eggs
02 120 grams granulated sugar (approximately 1/2 cup)
03 120 grams all-purpose flour (approximately 1 cup)
04 1/2 teaspoon vanilla extract
05 1/4 teaspoon salt

White Chocolate Mousse

01 200 grams white chocolate, chopped (about 7 oz)
02 300 milliliters heavy cream, divided (approximately 1 1/4 cups)
03 2 sheets gelatin or 5 grams powdered gelatin (approximately 1 1/2 teaspoons)
04 1 teaspoon vanilla extract

Mirror Glaze

01 200 grams white chocolate, chopped (about 7 oz)
02 150 grams granulated sugar (approximately 3/4 cup)
03 100 milliliters water (about 1/3 cup + 1 teaspoon)
04 100 grams sweetened condensed milk (approximately 3.5 oz or 1/3 cup)
05 8 grams powdered gelatin (about 2 1/4 teaspoons)
06 Food coloring (silver, pearl, or pastel tones)

Decoration

01 Edible silver leaf
02 Edible glitter
03 Sugar pearls or edible jewels

Steps

Step 01

Prepare Oven and Pan: Preheat oven to 340°F (170°C). Grease and line a ring-shaped cake pan or use a standard pan with a small round cutter in the center to create a ring shape.

Step 02

Make Sponge Cake: Whisk eggs and sugar in a stand mixer until pale and tripled in volume, about 8 minutes. Gently fold in sifted flour, vanilla extract, and salt. Pour batter into pan and smooth surface. Bake 25–30 minutes until a toothpick inserted comes out clean. Cool completely.

Step 03

Prepare White Chocolate Mousse: Soften gelatin in cold water for 5 minutes. Melt white chocolate over bain-marie or microwave. Heat 100 ml heavy cream until just simmering, dissolve gelatin in it, then stir into melted chocolate until smooth. Cool to room temperature. Whip remaining 200 ml cream to soft peaks and fold into chocolate mixture with vanilla extract.

Step 04

Assemble Cake Layers: Slice cooled sponge horizontally into two layers. Place bottom layer in a ring mold or springform pan, spread half of the mousse evenly, add top cake layer, then cover with remaining mousse. Smooth top surface and freeze for 2 hours.

Step 05

Prepare Mirror Glaze: Soften gelatin in cold water. In a saucepan, combine sugar, water, and sweetened condensed milk; bring to a boil and remove from heat. Stir in gelatin to dissolve thoroughly, then pour over chopped white chocolate. Let sit for 2 minutes, then blend until smooth. Add desired food coloring for a jewel-like finish. Cool glaze to 90°F (32°C).

Step 06

Glaze and Decorate Cake: Remove cake from freezer and unmold onto wire rack. Pour mirror glaze evenly over frozen cake, allowing excess to drip off. Immediately decorate with edible silver leaf, glitter, and sugar pearls to emulate the sparkle of diamond rings.

Step 07

Chill and Serve: Refrigerate the finished cake for 1 hour to set glaze. Slice and serve.

Equipment Needed

  • Stand mixer or hand mixer
  • Ring-shaped cake pan or springform pan
  • Mixing bowls
  • Saucepan
  • Wire rack
  • Offset spatula
  • Thermometer

Allergy Info

Double-check every item for known allergies. If unsure, reach out to a healthcare provider.
  • Contains eggs, dairy, and gluten (wheat). May contain soy in chocolate. Decorations may include nut and gluten traces.

Nutrition Details (each serving)

Nutrient details are offered for reference only. Speak with your doctor for personal health questions.
  • Calorie Count: 410
  • Fat Content: 23 g
  • Carbohydrate: 47 g
  • Proteins: 6 g