8.1mm Diamond Price According to the Latest 2026 4Cs Standards
Key Takeaways
- A 8.1mm diamond is a common way to refer to a diamond with a diameter of approximately 8.1 mm, equivalent to a weight of about 2.0 carats (depending on the cut). On...
A 8.1mm diamond is a common way to refer to a diamond with a diameter of approximately 8.1 mm, equivalent to a weight of about 2.0 carats (depending on the cut). On the market, 8.1mm diamonds typically range in price from 1,000,000,000 VNĐ to over 2,000,000,000 VNĐ, depending on the stone's quality.
In the article below, we will explore how many carats an 8.1mm diamond is, its reference selling price, and the factors influencing its true value.
How much does an 8.1mm diamond cost?
Currently on the market, 8.1mm diamonds with a GIA (Gemological Institute of America) certificate typically range in price from 900,000,000 VNĐ to over 2,000,000,000 VNĐ. The price of an 8.1mm diamond depends on many factors such as color, clarity, and cut.
Reference price for a natural 8.1mm diamond:
- 8.1mm diamond, D color, VVS1 clarity, selling price around 1,879,990,000
- 8.1mm diamond, E color, IF clarity, selling price around 1,739,990,000
- 8.1mm diamond, F color, VVS1 clarity, selling price around 1,639,990,000
- 8.1mm diamond, D color, VS1 clarity, selling price around 1,279,990,000
Note: The prices for 8.1mm diamonds in this article are estimated and updated for January 2026. In case of a shortage of natural diamonds, prices may continue to increase in the future.
See more: Import customs diamond prices at Jemmia Diamond
The price of an 8.1mm diamond ranges from 900 million to 2 billion VND
See more: The beauty of a round diamond cut
What factors influence the price of an 8.1mm diamond?
The price of an 8.1mm diamond is not fixed but depends on many quality factors according to international standards. Among these, the most important are the 4Cs criteria recognized by the Gemological Institute of America (GIA), specifically:
Carat (Weight)
An 8.1mm diamond has a diameter of approximately 8.1 mm, equivalent to a weight of about 2.0 – 2.2 carats (depending on the cut proportions). At a large carat weight like 2 carats, diamond prices increase exponentially due to high rarity and demand. Even a small difference in carat can create a significant difference in price.
Cut
The cut is a factor that directly affects the sparkle and overall beauty of a diamond. An 8.1mm diamond with an Excellent cut will reflect light optimally, creating a brilliant effect and having a significantly higher value compared to stones with Good or Fair cuts.
An 8.1mm diamond depends on the GIA 4Cs factors
Color
The color of a diamond is graded on a scale from D (colorless) to Z (noticeable yellow).
- D–F (Colorless): Has the highest value, with almost perfect transparency.
- G–H (Near Colorless): Still retains its pure beauty but with a more "accessible" price point.
For 8.1mm diamonds, D, E, and F color grades are always preferred because they enhance the size and brilliance of the stone.
Clarity
Diamond clarity reflects the presence and size of inclusions within the diamond. Due to their large size, 8.1mm diamonds are more prone to showing inclusions, thus VVS1, VVS2, or IF grades often have the highest value. The higher the clarity, the higher the price.
In addition, the price of 8.1mm diamonds is also affected by the increasing scarcity of large natural diamonds, while demand continues to grow. This causes the price of 8.1mm diamonds to fluctuate and increase over time, especially for high-quality stones.
The meaning of an 8.1mm diamond
According to Feng Shui and numerological beliefs, 8.1 has a total value of 9, representing eternity, longevity, and fulfillment. The number 9 has long been considered a symbol of stability, prosperity, and lastingness.
Therefore, 8.1mm diamonds are often chosen for:
- High-end engagement rings
- Wedding anniversary rings
- Jewelry to mark career success milestones
The meaning of an 8.1mm diamond
Where to buy a reputable and quality 8.1mm diamond?
Choosing a reputable place to buy an 8.1mm diamond is crucial to ensure its quality, value, and long-term price retention. JEMMIA DIAMOND is one of the brands trusted by many customers when looking for large natural diamonds, as it meets all the following important criteria:
- Transparent origin: 8.1mm diamonds at Jemmia Diamond are officially imported, with full documentation and international GIA certificates, ensuring clear origin and quality.
- In-depth consulting services: Private shopping spaces, along with experienced experts, help customers understand each of the 4Cs parameters and choose the 8.1mm diamond that best suits their needs and budget.
- Flexible buy-back and exchange policy: Jemmia Diamond applies a transparent exchange policy, giving customers peace of mind when investing in diamonds or needing to upgrade their stones in the future.
- Strict selection according to international standards: Only diamonds that meet high standards for color, clarity, and cut according to the GIA 4Cs system are selected.
- Modern inspection system from the USA: Jemmia uses 100% specialized GIA America technology equipment such as GIA iD100, GIA Diamond Dock, GIA Match iD… to accurately verify the quality and origin of each 8.1mm diamond.
Jemmia - A reputable and quality diamond destination
By combining all the above factors, Jemmia Diamond is a reliable destination for those seeking high-quality, transparent, and value-for-money 8.1mm diamonds.
