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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 1408479256

Certificate GIA 1408479256

Diamond specifications and retailer prices

From $3,005 SGD
As of November 4, 2026
Save $3,335 SGD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $7,950 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 1408479256. Listed at 25 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1408479256
Dimensions7.13 × 5.42 × 3.91 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.13 mm5.42 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1408479256
Side View
Table 58.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 72.2%

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: $3,636 SGD|Low: $3,005 SGD|High: $6,435 SGD|Avg: $4,215 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$3,005 SGD
Retailer 10$3,180 SGD
Retailer 5$3,604 SGD
Retailer 1$3,636 SGD
Retailer 3$3,678 SGD
Retailer 4$4,026 SGD
Retailer 2$4,275 SGD
Retailer 6$4,383 SGD
Retailer 7$4,641 SGD
Retailer 8$6,340 SGD

37 data points across 10 retailers

25 retailers$3,005 SGD to $6,340 SGD

B+
Cheapest Retailer
-
$3,005 SGD
B+
Retailer 2
-
$3,085 SGD
View
B+
Retailer 3
-
$3,180 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,217 SGD
View
B+
Retailer 5
-
$3,396 SGD
View
Retailer 6
-
$3,445 SGD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$3,491 SGD
View
B+
Retailer 8
-
$3,499 SGD
View
Retailer 9
-
$3,577 SGD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$3,604 SGD
View
Retailer 11
-
$3,636 SGD
View
Retailer 12
-
$3,678 SGD
View
B+
Retailer 13
-
$3,708 SGD
View
B+
Retailer 14
-
$3,935 SGD
View
B+
Retailer 15
-
$3,935 SGD
View
Retailer 16
-
$3,974 SGD
View
Price last confirmed 67 days ago
Retailer 17
-
$3,974 SGD
View
Price last confirmed 39 days ago
B+
Retailer 18
-
$4,026 SGD
View
B+
Retailer 19
-
$4,063 SGD
View
Retailer 20
-
$4,275 SGD
View
Price last confirmed 34 days ago
B+
Retailer 21
-
$4,383 SGD
View
Retailer 22
-
$4,414 SGD
View
Price last confirmed 15 days ago
B+
Retailer 23
-
$4,641 SGD
View
B
Retailer 24
-
$6,340 SGD
View
Most Expensive
NZ Jewellers
5e19215d-1df8-4705-b2d1-ae11bffc1d6e · Sep 30
$7,950 SGD
$6,203 USD
View
Price last confirmed 37 days ago
24 more retailers have this diamond
Prices start from $3,005 SGDSave up to $3,335 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
$3,005 SGD