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There is a number of parameters that determine the natural white diamond price of 1 carat. Take diamond buying advise from Gemone Diamond's expert.


Cut, Carat, Color, and Clarity are the universal language of diamond parameters. However, 4 C’s are an Old definition now.

1 Carat weight D color IF clarity diamond with triple excellent cut price would be quite different than 1 carat E color Vvs1 clarity diamond.

However, the Diamond price depends on many more parameters than the 4 C’s like cut, clarity, carat, and color. To understand this, we need to add so many other parameters.

1ct Colorless Diamond Lot Price chart

Clarity MM Size
  1 to 1.10 1.10 to 1.15 1.15 to 1.20 1.20 to 1.25
vs1/vs2 700$ 680$ 670$ 660$ View Diamond
vvs1/vvs2 780$ 760$ 720$ 720$ View Diamond
i1 520$ 500$ 500$ 480$ View Diamond
s1/s2 620$ 610$ 610$ 600$ View Diamond

Other parameters that affect the price of 1 Carat weight of Natural diamond:

Certification: Prices for certified diamonds per carat are different than those of non-certified stones. They are also different from the prices of the same quality GIA and IGI and even EGL certified diamonds.

Demand: The quality of diamonds, size and more features that are in demand in local and international markets determine the price.

Rapaport: Rapaport is the authority that commands the supreme powers to decide the Certified Polished Diamond Price. Prevailing discount rates offered in the market are also an important parameter. This is one of the parameters the Rapaport decide to take into account with major diamond markets.

Black Diamond 1 carat Price Chart



Carat AA AAA Shape    
0.12 to 0.15ct 22.5$ 30$ Round View Diamond  
0.16 to 0.20ct 30$ 40$ Round View Diamond  
0.21 to 0.25ct 37.5$ 50$ Round View Diamond  
0.26 to 0.30ct 50$ 60$ Round View Diamond  
0.31 to 0.35ct 52.5$ 70$ Round View Diamond  
0.36 to 0.40ct 60$ 80$ Round View Diamond  
0.50ct 75$ 100$ Round View Diamond  
0.60 to 0.70ct 105$ 140$ Round View Diamond  
0.71 to 0.80ct 120$ 160$ Round View Diamond  
0.80 to 0.90ct 135$ 180$ Round View Diamond  
1ct 150$ 200$ Round View Diamond  
1ct 150$ 200$ Emerald View Diamond  
0.50ct 104$ 140$ Princess View Diamond  
1ct 150$ 200$ Princess View Diamond  
0.50ct 75$ 100$ Pear View Diamond  
1ct 150$ 200$ Pear View Diamond  
0.50ct 75$ 100$ Oval View Diamond  
1ct 150$ 200$ Oval View Diamond  
1ct 60$ 520$ Rose View Diamond  
1ct 208$ 278$ Marquise View Diamond

Buyer & Sellers Need/Urgency/Margins: The individual demand by diamond buyers and diamond sellers is a factor. Their capacity for holding diamonds/ margins/their need for money is an important parameter for the international market.

Terms: Diamond trade-in India mostly happens on a Cash and Credit basis. When diamonds are sold on a Credit basis, the price will be more taking upward in calculation value and interest for the diamonds.

Rough Diamond Price Index: DeBeers Used to control rough diamond prices. But now DeBeers control has loosened up drastically. This is because Canadian, Russian and Australian companies are giving them tough competition in Diamond mining.

Festivals & Celebrations: During Valentine's Day, christening, Christmas, and New Year's Eve, there is a jump in demand and so the prices rise.

Present Economic Scenario: the Present economy condition of a country, its growth (if good then the Demand rises), and so on, is the buying power of customers rises.

This is just a shortlist of the basic parameters, which define the 1 Carat diamond price. There are many micro and macro parameters as well, in addition to the consideration of buying natural diamonds offline and online.

1ct Small Black Diamond Lot Price Chart

small black diamond lot


MM Size AA AAA Shape  
2mm to 2.60mm 208$ 278$ Rose View Diamond
1mm to 1.30mm 208$ 278$ Round View Diamond
1.30mm to 1.60mm 208$ 278$ Round View Diamond
1.60mm to 1.70mm 208$ 278$ Round View Diamond
1.80mm to 1.90mm 208$ 278$ Round View Diamond
1.90mm to 2.20mm 208$ 278$ Round View Diamond
2.20mm to 2.50mm 208$ 278$ Round View Diamond
2.50mm to 2.80mm 208$ 278$ Round View Diamond
2.80mm to 3.10mm 208$ 278$ Round View Diamond
2.60mm to 3mm 208$ 278$ Rose View Diamond
3mm to 4mm 208$ 278$ Rose View Diamond
4mm to 5mm 208$ 278$ Rose View Diamond


There is plenty of talk about the quality of the diamond in terms of the 4C's. While clarity, cut and color are as important to your diamond's appearance and how much it's worth it, the diamond’s carat will determine the real' Wow' of the Jewelry you want to wear!

The Carat and the Jewelry Effect

So what's the diamond carat? A diamond's carat describes your diamond's weight. A diamond, weighing 0.2 grams or 200 milligrams, has a ct abbreviation.


It may sound obvious, but the greater the carat you have, the greater the weight of the diamond will be. But this doesn't apply to all cases. You can sometimes have a small, but dense diamond which has a much higher carat than larger stones. The greater the weight of the carat, the rarer a diamond is.


The higher the weight of the carat is, the rarer the diamond is. Hence, the higher the price becomes. A single - carat diamond is going to cost more than 2 diamonds each 0.5 Carat, but much less than a single 2-carat diamond. That is if we assume that for each stone, all other qualities, such as cut, clarity, and color, are the same.




The price depends a lot on different parameters like clarity, carat, cut, and color. A rejected diamond can be used to make diawmond bead so diamond beads cost less money.

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