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12:26 CH - Thứ Năm | 21/08/2025

What are pink diamonds? Why do diamonds have a pink color?

Key Takeaways

  • Pink diamonds are among the natural gemstones formed deep within the earth, with a value far exceeding that of white diamonds. Not only do they shine with a romantic pink hue, but...

Pink diamonds are among the natural gemstones formed deep within the earth, with a value far exceeding that of white diamonds. Not only do they shine with a romantic pink hue, but they are also symbols of power and eternity. So, what makes pink diamonds so special that billionaires and collectors alike covet them? Let's find out in this article by Jemmia. 

What Are Pink Diamonds?

Pink diamonds (Pink Diamond) are a rare type of natural diamond, formed from pure carbon under extreme pressure and temperature deep within the earth over billions of years. Their special characteristic lies in their natural pink color - a result of structural deformation during the formation process, not due to impurities like many other colored stones. This factor makes pink diamonds both beautiful, rare, and highly valuable for collection and investment.

In the market, pink diamonds are usually certified by reputable international centers such as GIA (Gemological Institute of America). This certification not only confirms the natural pink color but also ensures the origin, legality, and transparency of the stone's quality.

According to reports from Argyle Mine, Australia (the world's most famous pink diamond mine, now closed), only less than 0.01% of all diamonds mined globally are pink. This explains why a high-quality pink diamond can fetch millions of US dollars at international auctions.

pink diamond

Diamonds with a pink color, possessing exquisite, luxurious beauty

Characteristics of Pink Diamonds

Pink diamonds are not only distinguished by their rare natural pink hue but also possess unique physical and optical properties that attract particular interest from experts and collectors. Below is a summary of the most outstanding characteristics of pink diamonds:
 

Characteristic

Detailed Description

Name

Pink Diamond (Pink Diamond)

Color

From light pink to deep pink (Fancy Light Pink – Fancy Vivid Pink). The deeper the pink, the rarer it is.

Origin

Mainly from Argyle Mine (Australia - now closed). Also found in Russia, South Africa, Canada.

Mechanism of Color Formation

Due to crystal structure deformation under extreme pressure, not due to impurities.

Crystal Structure

Cubic system - diamond cubic crystal lattice. Deformation within the lattice creates the characteristic pink hue.

Hardness (Mohs)

10/10 - same as all other natural diamonds.

Specific Gravity (SG)

Approximately 3.52 g/cm³

Refractive Index (RI)

2.417 – 2.419

Rarity

< 0.01% of all diamonds mined globally.

Optical Properties

Strong dispersion (0.044), brilliant light reflection, light effects vary with color intensity.

Learn more about the color of pink diamonds

The most special and rare characteristic of pink diamonds is their natural pink hue. Depending on the intensity and shade of color, GIA (Gemological Institute of America) categorizes pink diamonds into different grades:

  • Faint Pink: Very light pink, a subtle hint of pink.
  • Very Light Pink: Light, soft pink.
  • Light Pink: Brighter, more noticeable pink.
  • Fancy Light Pink: Distinct pink, with clarity.
  • Fancy Pink: True, balanced pink hue.
  • Fancy Intense Pink: Deep, vibrant pink, highly sought after.
  • Fancy Vivid Pink: The brightest and most vibrant pink, extremely rare.
  • Fancy Deep / Fancy Dark Pink: Deep or dark pink.

Learn more about the color of pink diamonds

Pink diamonds come in various color grades.

In addition, pink diamonds can also have secondary hues such as Purplish Pink, Brownish Pink, or Orangey Pink, creating diverse and unique beauty.
 

Price of Pink Diamonds

The price of pink diamonds is consistently among the highest in the natural diamond market, even surpassing many other fancy color diamonds. This is due to their extreme rarity (less than 0.01% of all diamonds mined globally) and the increasingly limited supply after the Argyle Mine (Australia) – which supplied up to 90% of the world's pink diamonds – officially closed in 2020.

Reference prices for pink diamonds (depending on carat weight, color, clarity, and cut) typically range:

Color Grade

Reference Price (USD/carat)

Light Pink (Faint - Light Pink)

From ~10,000 – 15,000 USD/carat, can go up to ~220,000 USD/carat.

Fancy Light Pink

Around 76,000 USD/carat (recorded average price).

Fancy Intense / Deep Pink

Can reach up to ~700,000 USD/carat.

Fancy Vivid Pink (rarest, most vibrant)

Ranges from several hundred thousand to over 1,000,000 USD/carat.

In reality, exceptionally rare pink diamonds are often traded at record prices through international auctions. For instance, the 59.6-carat Pink Star diamond was sold for 71.2 million USD at Sotheby's, becoming one of the most expensive diamonds ever bought and sold.

the price of pink diamonds depends on color

Reference prices for pink diamonds can reach up to 1,000,000 USD per carat.

Trends in Pink Diamond Jewelry

Pink diamonds are not only the rarest gemstones in the world but also a popular choice for high-end jewelry creation. With their romantic, feminine, and luxurious beauty, pink diamond jewelry is increasingly favored by the elite, business people, and couples. Here are some outstanding designs:

  • Women's Pink Diamond Rings: Enhancing delicate beauty, making women stand out on any occasion, from daily work to luxurious events.
  • Pink Diamond Wedding/Engagement Rings: Pink diamond wedding or engagement rings are a symbol of eternal love. With their romantic and rare pink hue, they are the perfect choice for a lifelong commitment.
  • Pink Diamond Earrings: Delicate accents that bring elegance and charm, especially suitable for sparkling evening parties. 
  • Pink Diamond Necklaces: Possessing a gentle, feminine beauty while exuding power, showcasing refined taste and individual personality.

trends in pink diamond jewelry

Pink diamond ring

Origin and Meaning of Pink Diamonds 

Pink diamonds have long captivated human curiosity. Even in ancient times, they appeared in many gemstone stories and legends. In ancient Indian culture, they were considered symbols of love and creativity. In Greek mythology, diamonds with pink hues were believed to be the tears of the gods. They carry profound meanings of love and eternity.

Furthermore, they have the ability to change color. Under different types of light, pink diamonds can shine with varying colors, from a pale yellow-pink like dawn to a deep pink and purple like sunset. This creates richness and diversity in the beauty of this special diamond.

origin and meaning of pink diamonds

Jemmia hopes that through this article, you have gained useful and interesting information about pink diamonds, from their concept and characteristics to their value and the stories surrounding this gemstone.

Whether you are a gemstone enthusiast, interested in culture and history, or simply someone looking to explore new things. Natural pink diamonds are an unmissable choice.

Nhung Hoang

Author: Nhung Hoang

Content Writer Specialist

Nhung Hoang là Content Writer Specialist với hơn 3 năm kinh nghiệm nghiên cứu và phát triển nội dung về kim cương tự nhiên và ngành trang sức. Với nền tảng kiến thức được đào tạo trực tiếp bởi Giám đốc hoạch định GIA của Jemmia Diamond, Nhung Hoang tập trung xây dựng các bài viết chuyên sâu về kim cương GIA, trang sức kim cương và xu hướng trang sức, nhằm mang đến những thông tin chính xác và đáng tin cậy cho người đọc.

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