How much is a 5 Carat Natural Diamond? Where to Buy Reputably?
Key Takeaways
- A 5-carat diamond is considered the ultimate symbol of luxury and class in the world of jewelry. Due to its large weight and rarity, each 5-carat diamond can be worth billions of...
A 5-carat diamond is considered the ultimate symbol of luxury and class in the world of jewelry. Due to its large weight and rarity, each 5-carat diamond can be worth billions of VND. This article will help you understand how much a 5-carat diamond costs, what factors determine its price, and smart, safe buying tips.
What is a 5-carat diamond?
When talking about carat, many people only think of weight. However, at the 5-carat level, diamonds are no longer just ordinary jewelry but become a rare symbol. To understand better, it is necessary to analyze its concept and rarity in detail.
- Carat is a unit of weight, 1 carat = 0.2 grams. A 5-carat stone is equivalent to 1 gram.
- For a round brilliant cut, a 5-carat diamond has an average diameter of about 11.1 mm.
- According to GIA statistics, diamonds of 5 carats and above account for less than 1% of global mining output, indicating their exceptional rarity.

A 5-carat diamond is equivalent to 1 gram
How much does a 5-carat diamond cost?
The price of a 5-carat diamond is not fixed but varies according to many factors such as the 4Cs and the international market. In Vietnam, the price ranges from several billion to over ten billion VND, depending on the quality.
- In the international market, a D – IF – Excellent Cut 5-carat diamond can fetch $400,000 – $600,000 USD.
- In Vietnam, the common price ranges from 3 to 15 billion VND depending on the 4Cs.
- 5-carat diamonds with GIA certificates always cost more than uncertified ones, as they ensure transparency and liquidity.
Reference price list for 5-carat diamonds (GIA-certified):
Weight | Color Grade | Clarity Grade | Cut Grade | Reference Price (VND) |
5.00 ct | D | IF | Excellent | 12 – 15 billion |
5.00 ct | F | VVS1 | Excellent | 9 – 11 billion |
5.00 ct | G | VS1 | Excellent | 6 – 8 billion |
5.00 ct | H | SI1 | Very Good | 3 – 5 billion |
Factors Affecting the Price of a 5-Carat Diamond
The value of a 5-carat diamond is shaped by many factors. These are the core criteria applied in the global jewelry industry.
- Carat (weight): The larger the weight, the higher the price. Especially for 5-carat diamonds, the price increases exponentially, not linearly.
- Cut: The cut determines the sparkle. For large stones, an Excellent Cut optimizes light and maintains high value.
- Color: Colorless grades (D, E, F) have the highest value. A difference of one color grade can reduce the value by hundreds of millions to billions of VND.
- Clarity: Diamonds with fewer inclusions (IF, VVS) are more sought after. For a 5-carat stone, inclusions are more visible, so clarity is even more important.
- Certificates: GIA, AGS, or HRD are reputable guarantees. Certificates make 5-carat diamonds easy to trade and invest internationally.

The 4Cs factors affect 5-carat diamonds
Applications of 5-Carat Diamonds in Jewelry
A 5-carat diamond not only holds financial value but also has the power to enhance the style and status of its owner. In reality, they often appear in unique custom-made diamond jewelry designs.
- 5-carat diamond rings: A popular choice for wedding and engagement rings among the elite, symbolizing eternal love and class.
- Diamond necklaces: A large stone becomes the centerpiece, creating elegance and distinction.
- Diamond earrings: Often use a pair of symmetrical 5-carat stones, providing a rare aura of power and nobility.

Applications of 5-carat diamonds in jewelry
Is it worth investing in a 5-carat diamond?
5-carat diamonds are not just jewelry but also a safe investment asset. Their scarcity keeps them in high demand among the ultra-wealthy.
- Sustainable value: Large natural diamonds are increasingly scarce, maintaining their value long-term.
- Liquidity: Easy to trade on the international market if accompanied by a GIA certificate.
- Investment trend: Large diamonds are increasingly chosen as "safe-haven assets" alongside gold and real estate.

A 5-carat diamond is a safe investment asset
Tips for Buying a 5-Carat Diamond
With a value of billions of VND, buying a 5-carat diamond requires careful consideration. Buyers need to be well-informed and choose reputable brands to avoid risks.
- Choose a reputable brand: Only buy from stores with international GIA certificates.
- Check the laser inscription (edge number): Ensure the laser inscription on the stone matches the certificate.
- Avoid color-treated diamonds: HPHT or Irradiation types are worth much less than natural diamonds.
- Compare multiple options: Don't just look at the carat; consider the 4Cs comprehensively to choose the stone with optimal value.

Tips for buying a 5-carat diamond
FAQ – Frequently Asked Questions
How many millimeters is a 5-carat diamond?
A 5-carat diamond is approximately 11.1 mm in diameter for a standard round cut.
Are 5-carat diamonds rare?
Very rare, accounting for less than 1% of total mined diamonds.
Should I buy a 5-carat diamond for investment or jewelry?
Both are reasonable. It retains investment value and affirms personal class.
A 5-carat diamond is a symbol of luxury and rarity, as well as a valuable, sustainable asset. Its value depends on many factors such as weight, cut, color, clarity, and certification. If you are considering buying a 5-carat diamond, seek out reputable brands to ensure transparency and safety in both investment and use.