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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 1555953779

Certificate GIA 1555953779

Diamond specifications and retailer prices

From $6,208 SGD
$4,854 USD
As of November 2, 2026
Save $7,428 SGD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,636 SGD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555953779. Listed at 19 retailers as of October 30, 2026, with prices from $6,208 to $13,636, a $7,428 spread on the same certified stone. NZ Jewellers lists it at $13,636. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555953779
Dimensions7.67 × 5.51 × 3.84 mm
L/W Ratio1.39
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cavity, Feather, Needle
Top View
7.67 mm5.51 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555953779
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $13,636 SGD|Low: $6,187 SGD|High: $13,636 SGD|Avg: $8,559 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
Retailer 15
November 2, 2026
Retailer 6$6,208 SGD
Retailer 10$6,437 SGD
Retailer 4$6,504 SGD
Retailer 15$6,817 SGD
Retailer 13$7,386 SGD
Retailer 14$7,386 SGD
Retailer 5$7,787 SGD
Retailer 9$7,896 SGD
Retailer 2$7,898 SGD
Retailer 3$8,313 SGD
Retailer 12$8,523 SGD
Retailer 8$8,906 SGD
Retailer 7$11,930 SGD
Retailer 11$12,011 SGD
NZ Jewellers$13,636 SGD

30 data points across 15 retailers

19 retailers$6,208 SGD to $13,636 SGD

A
Cheapest Retailer
-
$6,208 SGD
$4,854 USD
A
Retailer 2
-
$6,437 SGD
$5,033 USD
View
A
Retailer 3
-
$6,504 SGD
$5,086 USD
View
A
Retailer 4
-
$6,817 SGD
$5,330 USD
View
Final sale: no returns
A
Retailer 5
-
$6,942 SGD
CA$7,539 CAD
View
B+
Retailer 6
-
$7,386 SGD
$5,775 USD
View
B+
Retailer 7
-
$7,386 SGD
$5,775 USD
View
B+
Retailer 8
-
$7,787 SGD
$6,089 USD
View
B+
Retailer 9
-
$7,863 SGD
$6,148 USD
View
B+
Retailer 10
-
$7,896 SGD
£4,862 GBP
View
B+
Retailer 11
-
$7,898 SGD
£4,863 GBP
View
B+
Retailer 12
-
$8,313 SGD
$6,500 USD
View
B+
Retailer 13
-
$8,313 SGD
$6,500 USD
View
B+
Retailer 14
-
$8,523 SGD
$6,664 USD
View
B+
Retailer 15
-
$8,594 SGD
$6,720 USD
View
B+
Retailer 16
-
$8,906 SGD
€6,632 EUR
View
B
Retailer 17
-
$11,930 SGD
$9,328 USD
View
B
Retailer 18
-
$12,011 SGD
£7,395 GBP
View
Most Expensive
B
NZ Jewellers
9ac07ea6-12d9-46ef-8643-3550185b7877 · Oct 30
$13,636 SGD
$10,662 USD
View
18 more retailers have this diamond
Prices start from $6,208 SGDSave up to $7,428 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
$6,208 SGD