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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 2457222138

Certificate GIA 2457222138

Diamond specifications and retailer prices

From $4,063 SGD
As of November 4, 2026
Save $4,498 SGD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,055 SGD at NZ Jewellers · As of September 30, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2457222138. Listed at 22 retailers as of November 4, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2457222138
Dimensions6.87 × 5.71 × 4.00 mm
L/W Ratio1.20
Top View
6.87 mm5.71 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2457222138
Side View
Table 73.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,960 SGD|Low: $3,622 SGD|High: $8,796 SGD|Avg: $5,455 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9$4,063 SGD
Retailer 2$4,181 SGD
Retailer 10$4,346 SGD
Retailer 3$4,709 SGD
Retailer 1$4,960 SGD
Retailer 4$5,037 SGD
Retailer 6$5,264 SGD
Retailer 11$5,571 SGD
Retailer 7$5,792 SGD
Retailer 8$6,343 SGD
Retailer 5$8,561 SGD

46 data points across 11 retailers

22 retailers$4,063 SGD to $8,561 SGD

B+
Cheapest Retailer
-
$4,063 SGD
B+
Retailer 2
-
$4,181 SGD
View
B+
Retailer 3
-
$4,346 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,518 SGD
View
B+
Retailer 5
-
$4,652 SGD
View
Retailer 6
-
$4,709 SGD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$4,709 SGD
View
Retailer 8
-
$4,889 SGD
View
Price last confirmed 38 days ago
Retailer 9
-
$4,960 SGD
View
B+
Retailer 10
-
$4,991 SGD
View
Retailer 11
-
$5,037 SGD
View
B+
Retailer 12
-
$5,264 SGD
View
B+
Retailer 13
-
$5,319 SGD
View
B+
Retailer 14
-
$5,319 SGD
View
Retailer 15
-
$5,433 SGD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$5,498 SGD
View
Retailer 17
-
$5,571 SGD
View
Price last confirmed 34 days ago
B
Retailer 18
-
$5,792 SGD
View
Retailer 19
-
$5,883 SGD
View
Price last confirmed 15 days ago
B
Retailer 20
-
$6,343 SGD
View
B
Retailer 21
-
$8,561 SGD
View
Most Expensive
NZ Jewellers
54a61131-ff84-4119-8033-69365cc1f830 · Sep 30
$9,055 SGD
$7,065 USD
View
Price last confirmed 37 days ago
21 more retailers have this diamond
Prices start from $4,063 SGDSave up to $4,498 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.

B+
1.50ct Radiant
$4,063 SGD