How much is a 6.3 carat diamond?
Key Takeaways
- A 6.3mm diamond is a popular size, favored for its balance between a striking appearance and a reasonable cost. So, how much does a 6.3mm diamond cost?This article from Jemmia Diamond will...
A 6.3mm diamond is a popular size, favored for its balance between a striking appearance and a reasonable cost. So, how much does a 6.3mm diamond cost?
This article from Jemmia Diamond will answer the question of how much a 6.3mm diamond costs, with the latest pricing, and analyze the key factors according to GIA's 4Cs standard (Color, Clarity, Cut, and Carat) to help you make a smart purchasing decision and own the perfect diamond!
How Much Does a 6.3mm Diamond Cost?
The price of a 6.3mm diamond on the market varies significantly, ranging from 200,000,000 VNĐ to over 400,000,000 VNĐ, depending entirely on the GIA 4Cs standard (Gemological Institute of America).
Specifically, the 4Cs standard includes shape, size, color, clarity, as well as the GIA certificate and the place of purchase.
Below is the specific price list for 6.3mm GIA diamonds, officially imported, updated 11/2025 from Jemmia Diamond:
Color Grade | Clarity Grade | Selling Price |
6.3mm diamond, D color | IF | 366,620,000 VNĐ |
6.3mm diamond, D color | VVS1 | 339,450,560 VNĐ |
6.3mm diamond, D color | VS1 | 301,750,800 VNĐ |
6.3mm diamond, F color | VVS1 | 268,750,400 VNĐ |
6.3mm diamond, D color | VVS2 | 268,750,400 VNĐ |
6.3mm diamond, F color | VS2 | 229,990,800 VNĐ |
6.3mm diamond, G color | VS2 | 168,990,200 VNĐ |
Note: The diamond prices in this article are updated as of November 2025. In case of scarce supply, diamond prices may increase sharply in the future.
See now: The latest updated diamond price list or Contact Jemmia immediately for detailed consultation: 0838 353 333
Officially imported diamonds at Jemmia
The 4Cs Factors Affecting the Price of a 6.3mm Diamond
Carat (Weight)
Cut
- The cut is the soul of a diamond, determining its light reflection ability (sparkle or "fire"). GIA's grading scale is from Excellent → Good → Fair → Poor.
- A 6.3mm diamond with an Excellent cut grade optimizes light reflection, creating the most brilliant sparkle and sharp rainbow fire. An Excellent cut can increase the diamond's price by 10-20% compared to stones with lower cut grades (e.g., Good or Fair).
Color
Diamond color is graded on a scale from D (absolutely colorless) to Z (light yellow).
- D–F Group (Colorless): This is the highest value segment as the stone is almost perfectly transparent, with no discernible color tint to the naked eye.
- G–J Group (Near Colorless): Still maintains purity but is more affordable. The price difference between the D–F and G–J groups for a 6.3mm diamond can be tens of millions of dong.
Clarity
Clarity grades the extent of inclusions (internal impurities) and blemishes (surface imperfections) of a diamond. A 6.3mm diamond with high clarity grades like IF, VVS1, or VVS2 will be significantly more expensive (potentially double) than a stone at the SI1 or SI2 grade. This is because fewer inclusions allow light to pass through the stone perfectly, optimizing brilliance and transparency.
4Cs standards certified by GIA (Gemological Institute of America)
How Many Carats is a 6.3mm Diamond?
- This is an estimated weight, dependent on the diamond's cut proportions and depth.
- A 6.3mm diamond is very close to the psychological mark of 1.00 Carat, allowing buyers to own a diamond that visually appears almost 1 Carat but has an actual weight under 1.00 Carat (e.g., 0.95 ct), leading to significant cost savings compared to an exact 1.00 ct stone.
A 6.3mm diamond is approximately equal to 1 carat
What Type of Jewelry is a 6.3mm Diamond Suitable For?
- Engagement and Wedding Rings: A 6.3mm diamond is the best choice if you are looking for a diamond wedding ring that creates a strong, luxurious, yet balanced impression.
- Pendants: Creates a sparkling and eye-catching focal point at the neckline.
- Earrings: Using two 6.3mm stones for each ear will further enhance your face, exuding class at important events.
6.3mm diamonds are a standard size for all types of jewelry
Where to Buy a Trustworthy 6.3mm Diamond?
Deciding how much a 6.3mm diamond costs is not just about the price list, but also greatly depends on the place of purchase. A reputable store will ensure quality, value, and provide a secure shopping experience. Jemmia Diamond is proud to be a leading brand trusted by customers to own the perfect 6.3mm diamond.
- Natural diamonds are officially imported by Jemmia.
- Diamonds come with a clear GIA certificate for customers.
- Luxurious shopping space, providing an impressive experience.
- Jewelry design tailored to customer size requirements.
- Uniqueness and customization in jewelry design upon request.
- Experienced professionals and attentive, thoughtful consulting services.
- Jemmia Diamond is highly regarded by customers and partners for its product quality, service, and reputation. It has also received numerous awards and titles in the diamond industry.
- Jemmia currently offers the best buy-back and exchange policy on the market, giving customers peace of mind for future investments or upgrades.
However, to ensure absolute quality and origin, Jemmia Diamond has invested in a modern inspection equipment system. Watch the video below to discover the GIA iD100 and GIA Diamond Dock technologies for verifying genuine diamonds at Jemmia!
Refer to: Stores offering a diverse collection of high-class and quality 6.3mm diamond jewelry, including women's diamond rings, men's diamond rings, diamond earrings, diamond pendants, and diamond bracelets.
