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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1453276340

Certificate GIA 1453276340

Diamond specifications and retailer prices

From $3,609 SGD
As of November 2, 2026
Save $4,422 SGD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,031 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1453276340. Listed at 17 retailers as of November 2, 2026, with prices from $3,609 to $8,031, a $4,422 spread on the same certified stone. MOH London lists it at $8,031. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle57.29°
OriginNatural
Grading LabGIA
CertificateGIA 1453276340
Dimensions6.31 × 6.28 × 4.25 mm
L/W Ratio1.00
Girdle conditionPolished
Top View
6.31 mm6.28 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1453276340
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilion 57.29°Culet: NoneDepth 67.7%

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: $8,031 SGD|Low: $3,542 SGD|High: $8,592 SGD|Avg: $5,059 SGD|-6.5%
MOH London
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
November 7, 2026
Retailer 11$3,609 SGD
Retailer 15$3,874 SGD
Retailer 6$3,904 SGD
Retailer 7$3,932 SGD
Retailer 14$4,015 SGD
Retailer 16$4,118 SGD
Retailer 4$4,197 SGD
Retailer 10$4,364 SGD
Retailer 2$4,584 SGD
Retailer 5$4,934 SGD
Retailer 8$5,452 SGD
Retailer 13$5,620 SGD
Retailer 3$5,903 SGD
Retailer 12$6,446 SGD
Retailer 9$7,578 SGD
MOH London$8,031 SGD

26 data points across 16 retailers

17 retailers$3,609 SGD to $8,031 SGD

A
Cheapest Retailer
-
$3,609 SGD
A
Retailer 2
-
$3,874 SGD
View
A
Retailer 3
-
$3,904 SGD
View
A
Retailer 4
-
$3,932 SGD
View
A
Retailer 5
-
$4,015 SGD
View
Final sale: no returns
Retailer 6
-
$4,118 SGD
View
Price last confirmed 6 days ago
Retailer 7
-
$4,197 SGD
View
Price last confirmed 5 days ago
A
Retailer 8
-
$4,364 SGD
View
A
Retailer 9
-
$4,584 SGD
View
Retailer 10
-
$4,934 SGD
View
Price last confirmed 8 days ago
Retailer 11
-
$5,452 SGD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
$5,454 SGD
View
A
Retailer 13
-
$5,620 SGD
View
A
Retailer 14
-
$5,903 SGD
View
A
Retailer 15
-
$6,446 SGD
View
B+
Retailer 16
-
$7,578 SGD
View
Most Expensive
B+
MOH London
5A30393B5 · Nov 2
$8,031 SGD
£4,934 GBP
View
16 more retailers have this diamond
Prices start from $3,609 SGDSave up to $4,422 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
$3,609 SGD