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Radiant|Natural|GIA

1.50ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 1545128714

Certificate GIA 1545128714

Diamond specifications and retailer prices

From $2,913 SGD
HK$17,800 HKD
As of November 1, 2026
Save $3,496 SGD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,010 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 1545128714. Listed at 17 retailers as of November 1, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1545128714
Dimensions7.43 × 5.70 × 3.98 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.43 mm5.70 mm1.50 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1545128714
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.8%

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 1
Current: $3,136 SGD|Low: $2,896 SGD|High: $6,640 SGD|Avg: $4,003 SGD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$2,913 SGD
Retailer 1$3,136 SGD
Retailer 3$3,491 SGD
Retailer 8$3,536 SGD
Retailer 11$4,014 SGD
Retailer 2$4,055 SGD
Retailer 5$4,063 SGD
Retailer 10$4,155 SGD
Retailer 9$4,422 SGD
Retailer 7$4,486 SGD
Retailer 4$6,408 SGD

34 data points across 11 retailers

17 retailers$2,913 SGD to $6,408 SGD

A
Cheapest Retailer
-
$2,913 SGD
HK$17,800 HKD
A
Retailer 2
-
$3,136 SGD
₹233,605 INR
View
A
Retailer 3
-
$3,491 SGD
View
A
Retailer 4
-
$3,536 SGD
$2,766 USD
View
Final sale: no returns
A
Retailer 5
-
$3,693 SGD
$2,889 USD
View
Retailer 6
-
$3,831 SGD
$2,997 USD
View
Price last confirmed 14 days ago
Retailer 7
-
$3,923 SGD
$3,069 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$3,937 SGD
A$4,738 AUD
View
A
Retailer 9
-
$4,014 SGD
$3,140 USD
View
A
Retailer 10
-
$4,055 SGD
View
A
Retailer 11
-
$4,063 SGD
£2,503 GBP
View
Retailer 12
-
$4,074 SGD
$3,187 USD
View
Price last confirmed 16 days ago
A
Retailer 13
-
$4,155 SGD
$3,250 USD
View
Retailer 14
-
$4,422 SGD
$3,459 USD
View
Price last confirmed 14 days ago
A
Retailer 15
-
$4,486 SGD
€3,342 EUR
View
B
Retailer 16
-
$6,408 SGD
£3,947 GBP
View
Most Expensive
NZ Jewellers
4034e5c5-8dda-4627-8644-3682de31d601 · Oct 17
$8,010 SGD
$6,266 USD
View
Price last confirmed 15 days ago
16 more retailers have this diamond
Prices start from $2,913 SGDSave up to $3,496 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
1.50ct Radiant
$2,913 SGD