Champagne, Cognac, and Brown Diamonds

For years, diamond buying followed a simple rule: the whiter the diamond, the better.

But taste evolves. Today many sophisticated buyers are rediscovering something antique jewelers understood instinctively:

A diamond’s warmth can be just as beautiful as its brightness.

At J.R. Dunn Jewelers, we guide clients through a spectrum of natural hues that live just beyond the icy end of the color scale. When paired with antique-style cuts — especially elongated cushions, Old European cuts, and Old Mine cuts — these diamonds reveal a glow many people describe as candlelight sparkle.

Rather than focusing only on a letter grade, the goal becomes something more personal:

finding the hue that feels right to you.

Bright and Classic

Diamonds in the G–H range appear crisp and white while still feeling natural.

Soft and Romantic

Many clients love H–J “soft white” diamonds, which appear beautifully white but carry a gentle warmth.

Golden and Vintage Inspired

Diamonds graded M through T reveal mellow yellow tones that antique diamonds are famous for.

Warm and Distinctive

Champagne and cognac diamonds show deeper peach, honey, and caramel tones that feel rich and individual.

Seeing these ranges side by side often reveals something surprising: the diamond someone loves most is rarely chosen by grade alone — it’s the one with the most appealing glow.

Diamonds graded M through T often reveal what collectors call mellow yellow warmth.

In modern brilliant cuts these colors can appear stronger. But in antique-style diamonds, the broader facets soften the tone, producing a glow that feels:

• Buttery

• Golden

• Warm in evening light

Set in yellow gold, these diamonds blend beautifully with the metal and create the warm glow often seen in vintage jewelry from the late 1800s and early 1900s.

Beyond yellow tones lies the champagne spectrum, where diamonds display warm brown hues ranging from peach to cognac.

On a GIA grading report, these colors are typically described using modifiers such as:

• Brown

• Yellowish Brown

• Brownish Yellow

• Pinkish Brown

• Orangy Brown

However, within the jewelry trade there is another useful reference point: the C1–C7 champagne diamond color scale.

This system was created by Rio Tinto, the mining company that owned and operated the famous Argyle Diamond Mine in Western Australia, one of the world’s most important sources of champagne and cognac diamonds.

The scale helps describe the increasing depth of champagne color:

C1–C2 Very light champagne tones with subtle warmth.

C3-C4 Soft peach and honey hues — often the most sought-after balance of warmth and brilliance.

C5–C7 Richer cognac tones with deeper caramel color.

One particularly beautiful range within this spectrum is the peachy champagne diamond.

These diamonds look especially elegant when paired with brushed rose gold settings. The copper tones in rose gold echo the diamond’s peach warmth, creating a soft monochromatic palette that feels refined and modern.

The brushed finish further softens the metal’s reflection, allowing the diamond’s warm glow to take center stage.