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 October 2007.

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

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



 


 


 
Shape
 

Round
Round
Round
Round
Princess
Round
Round
Princess
Round
Princess
Princess
Round
Round
Round
Emerald
Princess
Cushion
Cushion
Round
Princess

Carat
 

1.00-1.25
1.50-1.99
2.00-2.99
1.26-1.49
1.00-1.25
3.00-3.99
.50-.69
1.50-1.99
.70-.79
2.00-2.99
.50-.69
.90-.99
.80-.89
4.00-4.99
1.00-1.25
1.26-1.49
1.50-1.99
2.00-2.99
5.00-5.99
.70-.79

Color
 

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

Clarity
 

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

% of
Searches

2.78%
2.41%
2.07%
1.12%
1.04%
0.97%
0.89%
0.71%
0.58%
0.56%
0.47%
0.45%
0.38%
0.35%
0.35%
0.34%
0.33%
0.31%
0.29%
0.28%

% of
Supply

0.55%
0.20%
0.27%
0.10%
0.16%
0.04%
0.24%
0.08%
0.29%
0.10%
0.05%
0.12%
0.05%
0.01%
0.07%
0.01%
0.04%
0.05%
0.01%
0.05%

Ave. Price
per Carat

$4,150.86
$6,058.88
$10,745.80
$4,587.74
$3,368.12
$11,223.19
$2,031.99
$4,996.09
$2,947.80
$7,906.83
$1,527.84
$3,293.43
$2,931.33
$16,488.72
$3,878.22
$3,925.28
$5,623.31
$8,119.60
$13,330.75
$2,001.89

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

2.41%
0.11%
0.05%
5.38%
6.16%
0.05%
1.03%
-
3.29%
0.40%
0.05%
3.86%
2.85%
16.19%
4.57%
0.02%
52.90%
0.01%
0.06%
0.59%
% of
Supply

2.38%
0.15%
0.12%
4.14%
5.66%
0.58%
1.47%
0.03%
3.14%
0.21%
0.03%
4.77%
4.21%
17.28%
6.31%
0.02%
47.91%
0.05%
0.35%
0.79%
Ave. Price
per Carat

$5,637.85
$2,706.18
$1,819.10
$5,605.50
$4,977.32
$1,566.53
$4,321.98
$4,053.46
$3,165.69
$3,019.04
$3,681.64
$4,224.35
$4,160.30
$3,463.07
$5,141.63
$1,738.42
$4,406.94
$3,149.26
$2,385.54
$2,290.02
FL
IF
VVS1
VVS2
VS1
VS2
SI1
SI2
SI3
I1
I2
I3
% of
Searches

1.20%
1.81%
4.09%
5.34%
14.02%
22.50%
26.73%
16.87%
3.57%
3.30%
0.49%
0.09%
% of
Supply

0.01%
1.66%
3.75%
7.07%
17.83%
21.39%
22.26%
18.23%
3.20%
3.42%
0.55%
0.07%
Ave. Price
per Carat

$23,388.65
$8,752.74
$5,195.74
$4,824.34
$4,710.13
$4,685.61
$4,109.42
$3,564.44
$2,424.36
$2,028.18
$1,252.64
$671.98
D
E
F
G
H
I
J
K+
% of
Searches

8.87%
10.56%
17.92%
22.27%
20.05%
11.62%
4.95%
3.76%
% of
Supply

9.90%
13.76%
17.30%
18.78%
15.27%
11.25%
6.26%
2.92%
Ave. Price
per Carat

$4,745.40
$4,174.71
$4,453.67
$4,590.48
$4,096.71
$3,893.64
$3,528.55
$2,570.47
<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

0.83%
1.08%
1.21%
0.80%
6.84%
5.12%
3.11%
3.78%
20.83%
7.83%
16.15%
16.25%
8.10%
3.03%
2.62%
2.41%
% of
Supply

2.65%
4.23%
3.21%
1.64%
10.62%
10.18%
2.53%
5.66%
27.28%
3.64%
11.59%
11.12%
3.15%
1.04%
0.98%
0.48%
Ave. Price
per Carat

$1,562.18
$1,654.14
$1,747.59
$1,751.42
$2,180.09
$2,714.34
$2,923.75
$3,265.87
$3,964.58
$4,423.99
$5,367.27
$7,282.62
$9,575.30
$12,006.42
$14,594.47
$16,616.80