How much do 8.6 carat diamonds cost?

A 8.6mm diamond currently ranges in price from 840,000,000 VND to over 2,460,000,000 VND, depending on the 4Cs standard and the accompanying GIA certification. With a size of 8.6mm (equivalent to a weight of approximately 2.5 - 2.9 carats), this is a rare diamond segment, possessing the feng shui meaning of "Prosperity" and is a preferred choice for investors and merchants.

Let's explore the value and pricing standards of this diamond in detail with Jemmia Diamond through the following article.

How much is an 8.6mm diamond?

The price of a high-quality 8.6mm diamond (Color D, Clarity IF) usually reaches around 2.4 billion VND. Due to its large size, the difference between color grades and clarity will create a price gap of up to billions of VND.

Reference price list for 8.6mm diamonds (Latest update 2026):

The differences in the 4Cs standards cause the diamond's value to change accordingly. Specifically, Color F diamonds with VVS2 clarity are the cheapest. And Color D diamonds with IF clarity are very expensive, nearly three times the price of Color F, VVS2.

Note: Diamond prices in this article are updated on March 25, 2026. In case of scarce supply, diamond prices may increase sharply in the future.

The price of a high-quality 8.6mm diamond usually reaches around 2.4 billion VND

Meaning and Characteristics of an 8.6mm Diamond

In the Vietnamese market, the term "ly" (millimeter) is more commonly used than Carat in direct transactions. An 8.6mm diamond has the following technical characteristics and symbolic value:

• Feng Shui Meaning: The number 86 represents "Prosperity." This is why an 8.6mm diamond is often chosen as a feng shui item or a main piece of jewelry for business people with the desire for a smooth career.
• Size and Weight: 8.6mm is equivalent to approximately 2.9 Carats. At this size, the diamond has a large surface area, allowing its facets to reflect light strongly and clearly.
• Scarcity: Natural diamonds larger than 8mm are very rare in nature, thus an 8.6mm diamond has high liquidity and asset accumulation value.

Read more: How much is a 4.5mm diamond?

Applications of Diamonds in Jewelry

• Diamond Rings: The 8.6mm size is suitable for ring designs with thick bands or accented with smaller diamonds, helping to balance the structure and enhance the overall reflectivity of the jewelry.
• Diamond Necklaces: With its large surface area, an 8.6mm diamond creates a brilliant focal point when crafted into a solitaire pendant or combined with a Halo setting, maximizing light attraction from a distance.
• Diamond Earrings: Often used in high-end Stud earring designs for luxurious occasions, bringing a sophisticated look and drawing all eyes to the wearer's face.

Jemmia Diamond – A Reputable Diamond Destination

Jemmia Diamond is an authorized partner of the Gemological Institute of America (GIA) for importing and distributing natural diamonds through official channels. To ensure asset value and customer peace of mind, we apply a stringent quality inspection process:

• 100% New Diamonds: We commit to only providing stones that have not been used, preserving their original material value and purity.
• 2% Selection Standard: We select only the **top 2% of the world's finest quality stones**, completely eliminating technical structural flaws.
• Transparent Legal Documentation: All products come with customs import invoices and international GIA appraisal certificates.
• Flexible Buy-back and Exchange Solution: A buy-back and exchange policy based on actual market fluctuations, supporting customers in optimizing their budget when upgrading their assets.