How much is a 1.5-carat diamond?
Key Takeaways
- 1.5mm melee diamonds of D color quality, VVS1 clarity are currently priced at 1,000,000 VND/stone in the Vietnamese market in 2026. According to data from the Vietnam Gemstone Market Report 2025, this...
1.5mm melee diamonds of D color quality, VVS1 clarity are currently priced at 1,000,000 VND/stone in the Vietnamese market in 2026. According to data from the Vietnam Gemstone Market Report 2025, this price reflects the stability of melee diamonds (small diamonds) compared to the strong fluctuations of larger diamonds over 6mm. In this article, diamond expert Jemmia will provide detailed prices for 1.5mm melee diamonds.
What are Melee Diamonds?
Melee diamonds are super small diamonds, typically ranging from 0.001 to 0.18 carats. For 1.5mm size, each carat contains about 65 to 70 stones. This type of diamond is mainly used for halo settings or to create sparkle on the ring band, optimizing the brilliance of the center stone.
To understand why there are price differences for 1.5mm diamonds, we need to consider standardized data points from the Gemological Institute of America (GIA):
- Distribution Density: 1 carat of 1.5mm melee diamonds contains 65 to 70 stones.
- Consumption Market Share: According to supply chain statistics, 1.5mm diamonds account for 45% of the total melee diamonds used in engagement ring halo settings globally, thanks to their "golden" ratio of light reflection.
- Quality Standards: 85% of high-end melee diamonds in the Vietnamese market currently focus on the D-F color grade and VVS clarity to ensure consistency when set in white gold or platinum.
Melee diamonds are super small diamonds
See more: Why Are Diamonds So Hard and Durable Over Time?
1.5mm Melee Diamond Prices Updated 2026
Currently, quality 1.5mm melee diamonds are commonly retailed at 1,000,000 VND/stone in the Vietnamese market in 2026. Below is a price list compiled from actual transactions and listings on major diamond exchanges.
According to the International Diamond Exchange (IDEX) Diamond Price Index, the price of natural melee diamonds has grown steadily by 3.5% annually due to rising mining and cutting costs in India.Why Do 1.5mm Melee Diamond Prices Vary?
The price difference for 1.5mm melee diamonds is mainly due to three factors: cut quality, natural vs. lab-grown origin, and certification.
Cut Grade
Even though the size is only 1.5mm, stones with an Excellent (H&A - Hearts and Arrows) cut can be up to 20% more expensive than standard cuts. Data shows that standard cuts help increase brilliance by 40%, making the jewelry appear larger than its actual size.
Scarcity of Natural vs. Lab-grown Supply
In 2026, the rise of lab-grown diamonds (LGD) has created a new price segment.
- Natural Melee Diamonds: Maintain good value, with liquidity reaching 70-80% of the original value.
- Lab-grown Melee Diamonds: Priced at only 40-50% compared to natural ones, but their resale value is almost zero.
Batch Grading Certificates (GIA Melee Analysis)
Melee diamonds usually do not come with individual certificates. However, batches graded by the GIA Melee Analysis Service (a service for analyzing large batches to identify mixed-in lab-grown diamonds) offer higher reliable value, helping protect consumers from "adulterated" goods.
