What is the current price of a 6.7 carat diamond?
Key Takeaways
- 6ly7 diamonds are one of the most sought-after sizes in the diamond segment from 1 carat and above. Not only do they create a sense of a large, luxurious stone, but 6ly7...
6ly7 diamonds are one of the most sought-after sizes in the diamond segment from 1 carat and above. Not only do they create a sense of a large, luxurious stone, but 6ly7 diamonds also fall into a price range with strong fluctuations, making buyers very easy to pay "more than the true value" if they don't understand how to appraise them.
So, what is the current price of a 6ly7 diamond, why is there a large price difference for the same size, and how to choose a beautiful, sparkling 6ly7 diamond within budget? The following article will give you a clear perspective before making a decision.
Latest 2026 Price Update for 6 Ly 7 Diamonds
6 ly 7 diamonds have prices ranging from 108,000,000 VND to 200,000,000 VND. The price of a 6 ly 7 diamond can vary depending on many factors such as cut, color, clarity and the diamond's origin. Diamond price fluctuations in the market are very large; even within the same size, there can be significant differences.
- 6 ly 7 diamond, D color, VVS1 clarity, priced from approximately 150,000,000 VND – 200,000,000 VND.
- 6 ly 7 diamond, F color, VS1 clarity, priced from approximately 120,000,000 VND – 160,000,000 VND.
- 6 ly 7 diamond, G color, VS2 clarity, priced from approximately 110,000,000 VND – 140,000,000 VND.
- 6 ly 7 diamond, D color, SI1 clarity, priced from approximately 108,000,000 VND – 144,000,000 VND.
Note: Diamond prices in the article are updated as of January 2026. In case of supply scarcity, diamond prices may increase sharply in the future.
See now: Diamond Prices Updated Latest or Contact Jemmia's consultants immediately: 0838 353 333
How many carats is a 6ly7 diamond?
In the diamond industry, the term 6ly7 refers to a diamond with a diameter of approximately 6.7 mm, commonly applied to round brilliant diamonds.
Based on the size-to-weight conversion chart used by international laboratories such as GIA, a round diamond with a diameter of 6.7 mm is typically equivalent to about 1.08 - 1.12 carats, and is conventionally referred to as 1.1 carats in the market.
This conversion is based on a standard cut with common parameters: a depth of about 60-62.5%, and a table percentage of 54-58%. Under ideal cutting conditions, a diamond measuring 6.7 mm would weigh very close to 1.10 carats.
However, it's important to note that diameter does not perfectly reflect carat weight. Two diamonds with the same 6.7 mm diameter can still differ by a few "points" of a carat due to variations in:
- The stone's depth (cut deep or shallow)
- The overall proportions of the cut

Round diamonds with a diameter of 6.7 mm are usually equivalent to about 1.08 - 1.12 carats
In actual grading, the precise carat weight is only confirmed on the certificate (GIA, IGI, HRD…). Therefore, when buying a 6ly7 diamond, buyers should examine both the diameter and the carat weight simultaneously, rather than relying on a single parameter.
What is the meaning of a 6ly7 diamond?
In Feng Shui, a 6ly7 diamond symbolizes the balance between wealth and a solid foundation. The number 6 is associated with prosperity and smooth progress, while 7 represents inner strength and protective abilities. This combination signifies attracting opportunities while maintaining long-term stability.
Diamonds belong to the Metal element, suitable for individuals with Metal and Water birth elements, especially those in business, management, or fields requiring clear thinking and decisiveness. The 6ly7 size is considered sufficient to activate positive energy without appearing ostentatious.
In summary, a 6ly7 diamond in Feng Shui signifies wealth accompanied by stability, wisdom, and personal prestige, making it suitable for long-lasting jewelry.

6ly7 diamonds in Feng Shui signify wealth accompanied by stability and wisdom
What type of jewelry is a 6 ly 7 diamond suitable for?
6 ly 7 diamonds are a versatile size, suitable for many types of jewelry such as diamond engagement rings, necklaces, and diamond earrings. With this size, 6 ly 7 diamonds bring balance and harmony to jewelry designs, fitting various styles and occasions.
Refer to the Diamond Jewelry Collection at Jemmia Diamond:
Why choose to buy natural 6ly7 diamonds?
Natural 6ly7 diamonds are approximately 1.1 carats, reaching a beautiful and prominent size when worn, but not yet in the significantly price-increasing group of larger carats. This is a highly regarded choice for visual "value" if the stone has good proportions.
Compared to lab-grown diamonds, natural diamonds have sustainable value and retain their worth over time, especially when accompanied by international certificates like GIA. Furthermore, natural diamonds carry a meaning of authenticity and lasting commitment, suitable for engagement rings and commemorative jewelry.

Natural diamonds carry deep symbolic meanings of eternity, prosperity, class, and purity
Where to buy reputable and quality 6ly7 diamonds?
To buy reputable and fairly priced 6ly7 diamonds, the most crucial factor is not advertising, but rather the grading standards, transparency, and expertise of the seller.
Firstly, prioritize stores or distributors that exclusively deal in natural diamonds with international certificates, the most common and reliable being GIA. The grading report must clearly state the carat, dimensions (mm), color, clarity, and cut proportions, helping to accurately confirm if the diamond is indeed a 6ly7.
Secondly, a reputable establishment should have a knowledgeable consulting team ready to explain the differences between diamonds of the same size but with different cuts, depths, or table percentages. This reflects practical experience, not just selling based on specifications.
Thirdly, the sales policy must be transparent and clear, including:
- Allowing online verification of GIA report numbers
- Commitment to the origin of natural diamonds
- Trade-in, upgrade, or long-term warranty policies

Jemmia is a specialized provider of quality 6ly7 diamonds, undergoing rigorous grading according to GIA's 4Cs standards for color, clarity, and cut. We are committed to not using 6ly7 diamonds with flaws that affect durability and structure.
At Jemmia, each diamond not only shines with beauty but also has transparent origin and legal status. Customers can feel completely secure with a set of 4 transparent documents proving origin, ensuring value for future transactions or investments:
- GIA Certificate
- Official Customs Declaration & Sales Invoice
- Sales Contract