The price of one-carat diamonds sold in Hong Kong, priced in Hong Kong dollars, is decided by many different factors. The most well-known standard is the 4C grading system, which includes cut, color, clarity and carat weight. Besides these four core elements, diamond certificates and brand influence also play a big role in setting the final price. Because of all these variables, the price range for a one-carat diamond is extremely wide in the local market. Normally, a one-carat diamond can cost from more than 30,000 Hong Kong dollars up to over 100,000 Hong Kong dollars.
For those low-quality natural diamonds, their prices can even go below 30,000 HKD. On the other side, high-grade natural colored diamonds are much more valuable. A single one-carat colored diamond may reach several hundred thousand Hong Kong dollars. Another big difference in the market comes from lab grown diamonds. There is a huge price gap between lab created diamonds and traditional natural diamonds. Generally speaking, a one-carat lab grown diamond with the same 4C quality only costs around one tenth to one fifteenth of a natural diamond of the same level. Many local buyers start to choose lab diamonds these days for its affordable price.
Introduction to the Key Pricing Factors: The 4C Standard
The 4C standard is the basic rule that every buyer should learn before buying a diamond. Each part affects the look, quality and price differently.
Cut
Cut is the most important factor among all four standards. It directly decides how brilliant and sparking a diamond will be. A poorly cut diamond will look dull, no matter how good its color or clarity is. When shopping for diamonds, shoppers are advised to pick diamonds graded Excellent or Very Good for cut. These two grades can bring out the best fire and light performance of a stone.
Color
Diamond color is graded from grade D, which is totally colorless, all the way down to grade Z, which shows obvious yellow tint. For natural diamonds, grades G, H and I are the most popular options among regular customers. To the naked eye, these diamonds look pure white, and they offer great value for money. When it comes to lab grown diamonds, most buyers prefer D, E and F color grades. Top color grades are more accessible on lab diamonds without paying an extremely high cost.
Clarity
Clarity refers to the number, size and position of natural inclusions inside a diamond. In the natural diamond market, VS1, VS2 and SI1 are top choices for daily wear. They have few tiny inclusions that people cannot see with bare eyes. Once the clarity drops to SI2 or lower grades, the inclusions inside the diamond are usually visible when you look closely. For lab grown diamonds, most customers tend to select VVS1, VVS2 and VS1 clarity grades, as lab stones can easily achieve high clarity at a low cost.
Carat
Carat is the unit for diamond weight. One carat equals 100 points, and it is also equal to 0.2 grams. Natural diamonds become much rarer as the carat weight increases. Their prices do not rise steadily; instead, they jump sharply when passing certain carat thresholds. A typical example is a 0.99-carat diamond and a 1.00-carat diamond. Even the weight difference is just 0.01 carat, their unit prices can be very different. This is a common rule in the natural diamond industry.
Price Range of One-Carat Natural Diamonds (Estimated in Hong Kong Dollars)
The following price ranges apply to loose round brilliant diamonds certified by GIA, which is one of the most authoritative diamond laboratories in the world. Round brilliant cut is the most classic and widely used cut for engagement rings and daily jewelry. Please note that diamond prices will change along with market supply, demand and currency exchange rates, so these figures are only for general reference.
Entry-level natural diamonds (with basic ring shank)
The price is about 20,000 HKD to 40,000 HKD.
Common 4C combination for this level: Color K to L, Clarity SI2 to I1, Cut graded Good. Diamonds in this grade may show a slight yellow hue, and small inclusions can be seen by naked eyes in some pieces. They are suitable for buyers who only need a simple diamond jewelry for casual use.
Mid-range mainstream diamonds (most popular choice with high cost performance)
The price ranges from 40,000 HKD to 80,000 HKD.
Typical 4C combination: Color G to H, Clarity VS2 to SI1, Cut from Very Good to Excellent. Diamonds in this price segment are the best pick for most consumers. They appear completely flawless to naked eyes, own pure white color and outstanding sparkle. Most wedding rings and daily diamond accessories in Hong Kong choose this grade.
High-end collectible diamonds
The price starts at 80,000 HKD and can go over 150,000 HKD.
Standard 4C combination: Color D to F, Clarity above VVS1, Cut Excellent. This is the top-tier configuration for natural diamonds. These stones are nearly flawless, with crystal clear white color and perfect light reflection. They are not only worn as jewelry but also collected by diamond lovers.
Brand premium
Famous international luxury diamond brands have obvious brand premium. Well-known brands such as Tiffany & Co., Cartier and Harry Winston set their one-carat diamond jewelry starting from 150,000 HKD. Some high-end styles can even reach 300,000 HKD or more. The high price of branded diamonds does not only come from the diamond itself. It also includes exquisite design, long brand history, large marketing cost and official after-sales guarantee. The actual value of the diamond only takes up a part of the total price.
Price Range of One-Carat Lab Grown Diamonds (Estimated in Hong Kong Dollars)
The below prices are for loose round brilliant lab grown diamonds with GIA or IGI certificates. These two institutions are widely recognized for grading lab created diamonds in Hong Kong market.
Entry-level lab grown diamonds
Price is around 2,000 HKD to 3,000 HKD.
Common 4C match: Color G to H, Clarity SI, Cut Very Good or Excellent. Even entry-level lab diamonds have decent quality for daily wearing.
Mid-range mainstream lab grown diamonds (best cost performance)
Price is about 3,000 HKD to 7,000 HKD.
Common 4C match: Color G to H, Clarity VS, Cut Very Good or Excellent. This is the most welcomed grade for lab diamonds. Buyers can get stones that are eye-clean, bright white and extremely sparkling. It is the first choice for young buyers and gift shoppers.
Top-quality lab grown diamonds (D color & VVS clarity)
Price ranges from 4,000 HKD to over 9,000 HKD.
Standard 4C combination: Color D to E, Clarity VVS, Cut Excellent. This is the top configuration within lab grown diamonds. Every detail of the stone is perfect, and its quality can compete with high-grade natural diamonds.
Important Reminder
All the prices mentioned above only count for loose diamonds, without any metal setting. A simple ring shank made of 18K gold costs roughly 3,000 HKD to 8,000 HKD in Hong Kong. If you buy a finished lab grown diamond ring with a basic 18K gold band, the total price will be between 9,000 HKD and 28,000 HKD in general.
Comparison Between Lab Grown Diamonds and Natural Diamonds (Hong Kong Market)
Many customers feel confused about the differences and similarities between lab grown diamonds and natural diamonds. In fact, they share a lot in common, while still having clear differences in value and market positioning.
First of all, they have the exact same chemical composition. Both lab diamonds and natural diamonds are pure carbon crystals. Their physical properties are also fully identical, including hardness, refractive index and density. When you look at them with naked eyes, no one can tell which one is lab made and which one is mined from nature. Both of them shine beautifully under light.
The biggest gap lies in price. A one-carat lab grown diamond is sold at 2,000 to 7,000 HKD, while a one-carat natural diamond is priced from 30,000 HKD to more than 160,000 HKD.
Their value trends are totally different too. As production technology improves and output increases every year, the price of lab grown diamonds keeps going down slowly. For natural diamonds, the price stays relatively stable, and high-quality pieces even have a potential for slow value appreciation in the long run.
When it comes to selling points, lab grown diamonds win buyers over with ultra-high cost performance, eco-friendly production process and no conflict diamond issues. Natural diamonds rely on their natural rarity, long traditional cultural meaning and relatively stable value preservation ability to attract loyal customers.
