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Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 5241008507

Certificate GIA 5241008507

Diamond specifications and retailer prices

From $5,725 SGD
As of November 6, 2026
Save $6,699 SGD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,424 SGD at NZ Jewellers · As of November 5, 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 I 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 5241008507. Listed at 17 retailers as of November 5, 2026, with prices from $5,725 to $12,424, a $6,699 spread on the same certified stone. NZ Jewellers lists it at $12,424. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.83°
Pavilion angle53.91°
OriginNatural
Grading LabGIA
CertificateGIA 5241008507
Dimensions7.62 × 5.91 × 4.13 mm
L/W Ratio1.29
Culet sizeNone
Key to symbols
Feather
Top View
7.62 mm5.91 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241008507
Side View
Table 67.0%Crown 36.83°Girdle: THN-STKPavilion 53.91°Culet: 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 6
Current: $7,174 SGD|Low: $5,725 SGD|High: $11,076 SGD|Avg: $7,605 SGD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6$5,725 SGD
Retailer 2$5,775 SGD
Retailer 7$6,857 SGD
Retailer 1$7,174 SGD
Retailer 3$7,206 SGD
Retailer 4$8,070 SGD
Retailer 5$10,914 SGD

29 data points across 7 retailers

17 retailers$5,725 SGD to $12,424 SGD

A
Cheapest Retailer
-
$5,725 SGD
A
Retailer 2
-
$5,775 SGD
View
A
Retailer 3
-
$6,285 SGD
View
A
Retailer 4
-
$6,478 SGD
View
Retailer 5
-
$6,522 SGD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$6,857 SGD
View
Final sale: no returns
B+
Retailer 7
-
$7,174 SGD
View
B+
Retailer 8
-
$7,206 SGD
View
B+
Retailer 9
-
$7,369 SGD
View
B+
Retailer 10
-
$7,428 SGD
View
Retailer 11
-
$7,428 SGD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$7,428 SGD
View
B+
Retailer 13
-
$7,627 SGD
View
B+
Retailer 14
-
$8,070 SGD
View
B+
Retailer 15
-
$8,570 SGD
View
B
Retailer 16
-
$10,914 SGD
View
Most Expensive
B
NZ Jewellers
00fd1fdc-4ea6-46a2-8f59-2f80fa684701 · Nov 5
$12,424 SGD
$9,694 USD
View
16 more retailers have this diamond
Prices start from $5,725 SGDSave up to $6,699 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
$5,725 SGD