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Radiant|Natural|IGI

1.51ct H SI1 Radiant Natural Diamond

VG • H/SI1 • IGI 828653791

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

Certificate IGI 828653791

Diamond specifications and retailer prices

From $5,399 SGD
As of November 6, 2026
Save $5,552 SGD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,951 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 828653791. Listed at 16 retailers as of November 5, 2026, with prices from $5,399 to $10,951, a $5,552 spread on the same certified stone. NZ Jewellers lists it at $10,951. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.1°
Pavilion angle28.7°
OriginNatural
Grading LabIGI
CertificateIGI 828653791
Dimensions7.61 × 5.56 × 3.71 mm
L/W Ratio1.37
Culet sizeNone
Top View
7.61 mm5.56 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653791
Side View
Table 67.0%Crown 51.1°Girdle: STK-THKPavilion 28.7°Culet: NoneDepth 66.7%

Caratlytics Score

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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 6
Current: $10,951 SGD|Low: $5,399 SGD|High: $11,172 SGD|Avg: $6,893 SGD|-2.0%
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 12$5,399 SGD
Retailer 2$5,485 SGD
Retailer 11$5,715 SGD
Retailer 6$5,757 SGD
Retailer 13$5,802 SGD
Retailer 9$6,191 SGD
Retailer 10$6,213 SGD
Retailer 7$6,238 SGD
Retailer 5$6,285 SGD
Retailer 14$6,384 SGD
Retailer 8$6,412 SGD
Retailer 15$6,582 SGD
Retailer 16$7,144 SGD
Retailer 3$7,669 SGD
Retailer 4$9,984 SGD
NZ Jewellers$10,951 SGD

15 data points across 16 retailers

16 retailers$5,399 SGD to $10,951 SGD

A
Cheapest Retailer
-
$5,399 SGD
A
Retailer 2
-
$5,485 SGD
View
A
Retailer 3
-
$5,715 SGD
View
Final sale: no returns
A
Retailer 4
-
$5,757 SGD
View
A
Retailer 5
-
$5,802 SGD
View
A
Retailer 6
-
$6,191 SGD
View
A
Retailer 7
-
$6,213 SGD
View
B+
Retailer 8
-
$6,238 SGD
View
A
Retailer 9
-
$6,285 SGD
View
A
Retailer 10
-
$6,384 SGD
View
Retailer 11
-
$6,412 SGD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$6,582 SGD
View
B+
Retailer 13
-
$7,144 SGD
View
B+
Retailer 14
-
$7,669 SGD
View
B
Retailer 15
-
$9,984 SGD
View
Most Expensive
B
NZ Jewellers
f83d0672-7283-49fd-af05-b905100c3c1f · Nov 5
$10,951 SGD
$8,545 USD
View
15 more retailers have this diamond
Prices start from $5,399 SGDSave up to $5,552 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
$5,399 SGD