What is the Current Price of a 6.4mm Diamond? Latest Price Update 2026
Key Takeaways
- In the article below, Jemmia will update you with the latest 6.4mm diamond prices on the market today. With a weight equivalent to approximately 1 carat, this diamond line not only enhances...
In the article below, Jemmia will update you with the latest 6.4mm diamond prices on the market today. With a weight equivalent to approximately 1 carat, this diamond line not only enhances elegance but also maintains good value for investment and luxurious jewelry.
What is a 6.4mm Diamond in Carat?
In the jewelry industry, "ly" is the term for the diamond's diameter measured in millimeters. Therefore, a 6.4mm diamond = 6.4mm. When converted to the international standard of carat, this diamond typically weighs around 1.0 carat. Depending on the depth and cut proportion, the actual weight may range from 0.98 - 1.05 carats.

A 6.4mm diamond is equivalent to 1.0 Carat
A size of ~1 carat is considered the "gold standard" in the jewelry world. They are large enough to be prominent and luxurious, yet suitable for various styles and budgets. Therefore, 6.4mm diamonds are popular for engagement rings, wedding bands, and high-end jewelry.
The Meaning of a 6.4mm Diamond
In Western culture, the number 6 is often associated with luck, balance, and harmony. Meanwhile, in Eastern culture, especially in Chinese culture, the number 6 is highly valued because its pronunciation resembles the word "lộc," symbolizing good fortune and prosperity, particularly in business transactions.
In Western culture, the number 4 is often considered a symbol of stability, solidity, perseverance, and reliability.

The meaning of a 6.4mm diamond
Therefore, in popular belief, choosing items related to these two numbers, such as 6.4mm diamonds, is seen as possessing symbols of good fortune, bringing prosperity and wealth. Moreover, the combination of these two numbers not only symbolizes material wealth but also reflects spiritual prosperity, creating a special connection between the material and spiritual in the concept of blessings and happiness.
What is the Current Price of a 6.4mm Diamond?
Each diamond is considered a completely unique masterpiece. The value of a gemstone is determined not only by its weight but also by considering the 4C standards, including clarity, color, and cut quality. However, no two diamonds have the same specifications except for the cut. Therefore, it is difficult to price them when you only provide carat weight information.
According to the natural diamond market in Vietnam today, the reference prices for 6.4mm diamonds are as follows:
- 6.4mm diamond, Excellent cut, D color, VVS1 clarity: approximately 120 - 150 million VNĐ and above
- 6.4mm diamond, Excellent cut, E color, VS1 clarity: approximately from 110 million to 157 million VNĐ
- 6.4mm diamond, Excellent cut, E color, VVS1 clarity: approximately 100 - 200 million VNĐ
- 6.4mm diamond, Excellent cut, F color, VS2 clarity: approximately over 100 million VNĐ

See the diamond price list from Jemmia, officially imported and cleared through customs
The best advice for you when seeking accurate pricing for a 6.4mm diamond today is to visit reputable jewelry stores directly. There, you can personally inspect the actual diamonds, and experienced professionals will assist you maximally in choosing the most suitable product.
What Jewelry is a 6.4mm Diamond Suitable For?
With its perfect size, a 6.4mm diamond is considered an ideal choice for crafting most types of high-end jewelry. From rings, earrings, necklaces to bracelets, each piece exudes a luxurious and sophisticated beauty while maintaining elegance for the wearer. Here are some outstanding jewelry suggestions:
Eternal Flower Diamond Necklace - PDFYJ2500461
This exquisitely designed necklace features a large central diamond as its highlight, enhancing a noble and graceful beauty. This type of jewelry is easy to pair with various fashion styles.

Eternal Flower Diamond Necklace - PDFYJ2500461
Queen's Crown Diamond Ring – RIFYJ2301981
The natural diamond ring design offers a brilliant and luxurious aesthetic. This is a popular choice for engagement rings, wedding bands, or high-end fashion rings, enhancing the hands and expressing personal style.

Queen's Crown Natural Diamond Ring – RIFYJ2301981
Light Dance Diamond Earrings - ERFYJ2500461
These natural diamond earrings are strikingly adorned, creating an captivating first impression. The sparkle of the stones makes the wearer's face appear more delicate and radiant, suitable for both parties and everyday wear.

Light Dance Diamond Earrings - ERFYJ2500461
Eternal Flower Diamond Bracelet - BLFYJ2500471
This intricately set bracelet, featuring a main diamond and surrounding smaller diamonds, not only accentuates a slender wrist but also creates a luxurious and sophisticated focal point. This combination brings a modern elegance to women.

Eternal Flower Diamond Bracelet - BLFYJ2500471
Where to Buy Reputable and Quality 6.4mm Diamonds
When investing in diamonds, customers seek not only brilliance but also transparency, trustworthiness, and enduring value. Jemmia Diamond proudly stands as one of Vietnam's leading reputable diamond brands, meeting all stringent international standards for quality, legality, and business ethics.
- Reputation and Transparency: Jemmia Diamond is a leading reputable diamond brand in Vietnam.
- Legal Origin: Diamonds are 100% officially imported and customs-cleared, with complete invoices and GIA (Gemological Institute of America) certificates.
- Exceptional Quality: Only selects the top 2% of the world's most beautiful diamonds, rigorously inspected according to GIA's 4C standards.
- Modern Technology: Pioneers in using 100% imported technology equipment from GIA USA (such as GIA iD100, GIA Diamond Dock).
- Ethical Diamonds: Imported from countries adhering to the "Kimberley Process," ensuring they are not from conflict zones.
Jemmia currently offers the best buy-back and exchange policy on the market, giving customers peace of mind when investing or upgrading their products later.

Therefore, according to Jemmia, referring to the public price list and contacting reputable units directly to receive detailed quotes, along with GIA certificates, is the most important step to ensure you make a smart investment decision and secure lasting value for your diamond.