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Radiant|Natural|IGI

1.51ct K SI2 Radiant Natural Diamond

VG • K/SI2 • IGI 660411129

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 660411129

Diamond specifications and retailer prices

From $2,221 SGD
As of November 4, 2026
Save $3,726 SGD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,947 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 660411129. Listed at 13 retailers as of November 4, 2026, with prices from $2,221 to $5,947, a $3,726 spread on the same certified stone. NZ Jewellers lists it at $5,947. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle45.8°
Pavilion angle31.6°
OriginNatural
Grading LabIGI
CertificateIGI 660411129
Dimensions7.20 × 5.77 × 3.99 mm
L/W Ratio1.25
Culet sizePointed
Top View
7.20 mm5.77 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 660411129
Side View
Table 66.0%Crown 45.8°Girdle: MED-STKPavilion 31.6°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,947 SGD|Low: $2,221 SGD|High: $5,947 SGD|Avg: $2,977 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 10$2,221 SGD
Retailer 12$2,381 SGD
Retailer 2$2,429 SGD
Retailer 8$2,438 SGD
Retailer 13$2,438 SGD
Retailer 3$2,439 SGD
Retailer 9$2,550 SGD
Retailer 11$2,558 SGD
Retailer 4$2,613 SGD
Retailer 14$2,813 SGD
Retailer 5$2,900 SGD
Retailer 6$3,331 SGD
Retailer 7$4,270 SGD
NZ Jewellers$5,947 SGD

38 data points across 14 retailers

13 retailers$2,221 SGD to $5,947 SGD

A
Cheapest Retailer
-
$2,221 SGD
B+
Retailer 2
-
$2,381 SGD
View
A
Retailer 3
-
$2,429 SGD
View
B+
Retailer 4
-
$2,438 SGD
View
Retailer 5
-
$2,438 SGD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$2,439 SGD
View
B+
Retailer 7
-
$2,550 SGD
View
B+
Retailer 8
-
$2,558 SGD
View
B+
Retailer 9
-
$2,613 SGD
View
Retailer 10
-
$2,813 SGD
View
Price last confirmed 61 days ago
B+
Retailer 11
-
$2,813 SGD
View
B+
Retailer 12
-
$4,270 SGD
View
Most Expensive
B
NZ Jewellers
befa1d0d-51a9-4245-bdd3-d044f374e15d · Nov 5
$5,947 SGD
$4,640 USD
View
12 more retailers have this diamond
Prices start from $2,221 SGDSave up to $3,726 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Radiant
$2,221 SGD