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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 2546118660

Certificate GIA 2546118660

Diamond specifications and retailer prices

From $3,986 SGD
As of November 6, 2026
Save $4,705 SGD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,161 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546118660. Listed at 21 retailers as of November 6, 2026, with a 118% 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546118660
Dimensions7.50 × 5.78 × 3.93 mm
L/W Ratio1.30
Top View
7.50 mm5.78 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546118660
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.0%

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 6
Current: $9,161 SGD|Low: $3,969 SGD|High: $9,161 SGD|Avg: $5,716 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
Retailer 16
Retailer 17
November 7, 2026
Retailer 4$3,986 SGD
Retailer 13$4,200 SGD
Retailer 17$4,797 SGD
Retailer 6$4,821 SGD
Retailer 11$4,985 SGD
Retailer 14$5,023 SGD
Retailer 8$5,258 SGD
Retailer 12$5,292 SGD
Retailer 9$5,358 SGD
Retailer 5$5,413 SGD
Retailer 3$5,434 SGD
Retailer 2$5,554 SGD
Retailer 15$5,877 SGD
Retailer 7$6,067 SGD
Retailer 16$6,377 SGD
Retailer 10$8,691 SGD
NZ Jewellers$9,161 SGD

27 data points across 17 retailers

21 retailers$3,986 SGD to $8,691 SGD

A
Cheapest Retailer
-
$3,986 SGD
A
Retailer 2
-
$4,200 SGD
View
A
Retailer 3
-
$4,797 SGD
View
A
Retailer 4
-
$4,821 SGD
View
Final sale: no returns
B+
Retailer 5
-
$4,985 SGD
View
B+
Retailer 6
-
$5,005 SGD
View
B+
Retailer 7
-
$5,023 SGD
View
Retailer 8
-
$5,258 SGD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$5,279 SGD
View
B+
Retailer 10
-
$5,292 SGD
View
Retailer 11
-
$5,358 SGD
View
Price last confirmed 22 days ago
Retailer 12
-
$5,358 SGD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$5,413 SGD
View
B+
Retailer 14
-
$5,434 SGD
View
Retailer 15
-
$5,554 SGD
View
Retailer 16
-
$5,781 SGD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$5,877 SGD
View
Retailer 18
-
$6,067 SGD
View
Price last confirmed 19 days ago
B+
Retailer 19
-
$6,377 SGD
View
B
Retailer 20
-
$8,691 SGD
View
Most Expensive
NZ Jewellers
0f92685b-5a49-416b-b35c-1f1e2a3ce145 · Oct 17
$9,161 SGD
$7,148 USD
View
Price last confirmed 20 days ago
20 more retailers have this diamond
Prices start from $3,986 SGDSave up to $4,705 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
$3,986 SGD