The Polygon "Popular Diamond" report is a new report that provides a snapshot of the most researched diamonds on CertNet—Diamond Database using the 4Cs combinations: Cut, Carat, Color and Clarity and then looking at each of the 4Cs independently.

The search activity will be expressed as a percentage of overall searches and the Supply as a percentage of overall items listed in the CertNet —Diamond Database. The data was compiled during a four-week period in September 2008.

CertNet—Diamond Database is the jewelry industry’s largest online database of loose wholesale diamonds, with approximately 300,000 line items with a wholesale value in excess of $3 billion dollars.

Polygon is the largest Internet marketplace dedicated exclusively to industry professionals. Thousands of buyers and sellers across more than 20 countries use Polygon to buy and sell jewelry products.


 


 


 
Shape
 

Round
 Round
Round
Round
Round
Princess
Round
Round
Princess
Round
Princess
Round
Princess
Cushion
Round
Princess
Cushion
Radiant
Princess
Round

Carat
 

1.00-1.25
 1.50-1.99
2.00-2.99
1.26-1.49
.50-.69
1.00-1.25
3.00-3.99
.70-.79
1.50-1.99
.90-.99
2.00-2.99
.80-.89
1.26-1.49
2.00-2.99
4.00-4.99
.70-.79
1.50-1.99
2.00-2.99
.50-.69
.30-.37

Color
 

G
 G
G
G
G
G
H
G
G
G
G
G
G
G
H
G
F
G
G
G

Clarity
 

SI1
 SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI2
SI1
VS2
SI1
SI1
SI1

% of
Searches

2.95%
 2.61%
2.26%
1.35%
1.08%
1.07%
0.93%
0.90%
0.87%
0.74%
0.62%
0.50%
0.36%
0.36%
0.35%
0.31%
0.26%
0.26%
0.26%
0.24%

% of
Supply

0.43%
 0.16%
0.16%
0.04%
0.28%
0.05%
0.04%
0.23%
0.02%
0.14%
0.02%
0.04%
0.00%
0.03%
0.03%
0.01%
0.03%
0.04%
0.01%
0.20%

Ave. Price
per Carat

$4,321.14
 $6,308.57
$8,561.90
$5,074.87
$2,002.13
$3,292.91
$9,369.33
$2,739.64
$5,016.59
$3,655.50
$6,730.37
$2,917.05
$3,940.50
$6,751.52
$10,582.17
$2,217.78
$7,055.29
$6,516.26
$1,608.35
$1,451.69

Asscher
Baguette
Cushion
Emerald
Half Moon
Heart
Kite
Marquise
Octagonal
Old European
Old Miner
Oval
Pear
Princess
Radiant
Rose Cut
Round
 Trapezoid
Triangular
% of
Searches

2.02%
0.08%
4.63%
4.64%
0.04%
0.88%
-
2.64%
0.00%
0.36%
0.11%
2.96%
2.83%
15.75%
4.09%
0.02%
58.23%
 0.06%
0.66%
% of
Supply

2.38%
0.20%
5.02%
5.63%
0.22%
1.31%
0.04%
3.11%
0.01%
0.09%
0.03%
4.92%
15.62%
3.94%
6.68%
0.03%
49.57%
 0.39%
0.72%
Ave. Price
per Carat

$6,107.85
$2,815.67
$5,565.63
$5,426.44
$2,431.10
$4,696.34
$3,169.86
$3,239.66
$4,902.89
$2,890.73
$5,037.09
$4,207.97
$3,337.99
$4,615.24
$4,977.80
$1,827.96
$4,470.16
 $2,529.76
$2,515.46
FL
IF
VVS1
VVS2
VS1
VS2
SI1
 SI2
SI3
I1
I2
I3
% of
Searches

1.07%
1.99%
4.09%
5.45%
13.05%
21.13%
27.93%
 17.56%
3.28%
3.71%
0.65%
0.09%
% of
Supply

0.02%
1.81%
4.01%
7.38%
17.51%
20.51%
21.94%
 18.08%
3.02%
4.04%
0.79%
0.11%
Ave. Price
per Carat

$21,082.86
$10,256.74
$5,781.95
$5,345.01
$4,952.49
$4,887.31
$3,947.19
 $3,498.64
$2,374.44
$2,004.61
$1,296.62
$738.32
D
E
F
G
 H
I
J
K+
% of
Searches

9.11%
11.44%
17.12%
22.80%
 19.15%
11.36%
4.83%
0.26%
% of
Supply

10.76%
13.98%
16.85%
17.33%
 14.12%
10.88%
6.40%
0.39%
Ave. Price
per Carat

$5,000.67
$4,417.49
$4,685.46
$4,656.96
 $4,239.80
$4,032.25
$3,588.20
$2,007.31
<0.30
.30-.37
.38-.45
.46-.49
.50-.69
.70-.79
.80-.89
.90-.99
1.00-1.25
 1.26-1.49
1.50-1.99
2.00-2.99
3.00-3.99
4.00-4.99
5.00-5.99
>=6.00
% of
Searches

0.97%
1.66%
1.45%
0.84%
6.65%
5.49%
3.55%
4.10%
20.50%
 8.46%
16.76%
16.19%
6.83%
2.65%
2.20%
1.71%
% of
Supply

2.30%
6.28%
4.16%
1.77%
11.27%
10.11%
2.44%
6.20%
25.94%
 3.33%
10.78%
10.08%
2.85%
1.10%
0.88%
0.49%
Ave. Price
per Carat

$1,614.52
$1,825.31
$1,932.38
$1,852.27
$2,296.09
$2,667.04
$2,930.34
$3,248.18
$3,952.39
 $4,604.92
$5,724.40
$7,231.49
$11,052.15
$16,682.08
$21,165.46
$24,674.04