The Polygon "Popular Diamond" report is a new report that provides a snapshot of the most researched diamonds on CertNet—Diamond Database using the 4C's combinations: Cut, Carat, Color and Clarity and then looking at each of the 4C's 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 December 2007.

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

Polygon is the largest Internet marketplace dedicated exclusively to jewelry industry professionals. Thousands of buyers and sellers across more than 35 countries use Polygon to buy and sell jewelry products daily.



 


 


 
Shape
 

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

Carat
 

1.00-1.25
 1.50-1.99
2.00-2.99
.70-.79
1.26-1.49
3.00-3.99
.50-.69
1.00-1.25
1.50-1.99
.90-.99
.80-.89
1.26-1.49
2.00-2.99
.70-.79
4.00-4.99
2.00-2.99
1.50-1.99
2.00-2.99
.38-.45
.50-.69

Color
 

G
 G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
H
H

Clarity
 

SI1
 SI1
SI1
SI1
SI1
SI1
SI1
VS2
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
SI1
VS2
SI1
SI1

% of
Searches

2.92%
 2.37%
2.13%
1.17%
1.10%
1.05%
1.00%
0.96%
0.63%
0.56%
0.52%
0.51%
0.43%
0.33%
0.33%
0.32%
0.32%
0.32%
0.28%
0.28%

% of
Supply

0.50%
 0.18%
0.21%
0.23%
0.06%
0.04%
0.22%
0.26%
0.07%
0.13%
0.05%
0.01%
0.06%
0.06%
0.02%
0.04%
0.04%
0.06%
0.05%
0.03%

Ave. Price
per Carat

$4,121.07
 $6,005.33
$8,272.46
$2,674.28
$4,760.28
$11,008.49
$1,965.41
$3,891.29
$5,068.48
$3,601.11
$2,892.55
$3,683.83
$6,592.97
$2,141.28
$16,748.64
$6,530.00
$5,091.54
$8,248.20
$1,375.98
$1,407.99

Asscher
Baguette
Bullets
Cushion
Emerald
Flanders
HalfMoon
Heart
Kite
Marquise
OldEuropean
OldMiner
Oval
Pear
Princess
Radiant
RoseCut
Round
 Trapezoid
Triangular
% of
Searches

2.71%
0.07%
0.01%
4.39%
5.22%
0.01%
0.01%
0.88%
0.01%
2.67%
0.24%
0.06%
3.15%
3.00%
15.02%
4.93%
0.01%
56.94%
 0.06%
0.60%
% of
Supply

2.41%
0.16%
0.09%
4.58%
5.71%
0.01%
0.35%
1.43%
0.02%
3.11%
0.18%
0.03%
4.87%
4.18%
17.78%
6.34%
0.02%
47.36%
 0.31%
0.79%
Ave. Price
per Carat

$5,938.00
$2,566.79
$1,795.00
$5,666.31
$5,141.95
$4,503.60
$1,800.55
$4,403.59
$4,587.95
$3,214.69
$2,881.67
$3,912.00
$4,292.71
$4,270.70
$3,368.69
$5,135.58
$1,694.58
$4,311.77
 $2,471.80
$2,276.24
FL
IF
VVS1
VVS2
VS1
VS2
SI1
 SI2
SI3
I1
I2
I3
% of
Searches

1.31%
2.08%
3.92%
5.36%
14.02%
22.14%
27.17%
 17.15%
3.31%
2.96%
0.45%
0.12%
% of
Supply

0.01%
1.63%
3.71%
7.24%
18.03%
21.48%
22.13%
 17.92%
3.15%
3.51%
0.59%
0.08%
Ave. Price
per Carat

$27,085.87
$9,064.72
$5,033.64
$4,768.25
$4,734.05
$4,692.32
$4,068.45
 $3,517.77
$2,375.34
$1,966.33
$1,160.86
$643.37
D
E
F
G
 H
I
J
K+
% of
Searches

9.32%
11.05%
17.80%
22.58%
 20.00%
11.46%
4.60%
3.19%
% of
Supply

10.44%
14.00%
17.02%
18.28%
 14.97%
11.11%
6.32%
5.02%
Ave. Price
per Carat

$4,684.98
$4,144.75
$4,463.25
$4,601.66
 $4,089.25
$3,896.15
$3,475.20
$2,088.76
<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

1.15%
1.25%
1.61%
0.67%
6.71%
6.50%
3.42%
3.73%
19.61%
 7.62%
15.43%
16.00%
8.39%
2.81%
2.69%
2.41%
% of
Supply

2.47%
4.60%
3.30%
1.57%
10.99%
10.44%
2.58%
5.97%
26.49%
 3.52%
11.48%
10.96%
3.14%
1.09%
0.93%
0.46%
Ave. Price
per Carat

$1,437.02
$1,722.14
$1,796.16
$1,761.10
$2,173.44
$2,671.27
$2,920.01
$3,206.48
$3,837.69
 $4,393.37
$5,385.81
$7,216.93
$9,834.48
$13,596.65
$16,531.84
$19,486.47