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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5403991543

Certificate GIA 5403991543

Diamond specifications and retailer prices

From $4,095 SGD
As of November 4, 2026
Save $5,504 SGD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,775 SGD at NZ Jewellers · As of September 10, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5403991543. Listed at 23 retailers as of November 4, 2026, with a 134% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5403991543
Dimensions7.31 × 7.25 × 4.56 mm
L/W Ratio1.01
Top View
7.31 mm7.25 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5403991543
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 4
Current: $9,599 SGD|Low: $3,688 SGD|High: $9,775 SGD|Avg: $6,068 SGD|-1.8%
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 14$4,095 SGD
Retailer 6$4,234 SGD
Retailer 4$4,236 SGD
Retailer 7$4,305 SGD
Retailer 8$4,345 SGD
Retailer 5$4,393 SGD
Retailer 16$4,981 SGD
Retailer 3$4,992 SGD
Retailer 17$4,992 SGD
Retailer 19$4,992 SGD
Retailer 9$5,330 SGD
Retailer 18$5,432 SGD
Retailer 2$5,513 SGD
Retailer 10$5,759 SGD
Retailer 13$5,823 SGD
Retailer 12$6,228 SGD
Retailer 11$7,967 SGD
Retailer 15$8,775 SGD
NZ Jewellers$9,599 SGD

43 data points across 19 retailers

23 retailers$4,095 SGD to $9,599 SGD

A
Cheapest Retailer
-
$4,095 SGD
A
Retailer 2
-
$4,234 SGD
View
A
Retailer 3
-
$4,236 SGD
View
A
Retailer 4
-
$4,305 SGD
View
A
Retailer 5
-
$4,345 SGD
View
A
Retailer 6
-
$4,393 SGD
View
B+
Retailer 7
-
$4,981 SGD
View
B+
Retailer 8
-
$4,992 SGD
View
Retailer 9
-
$4,992 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,992 SGD
View
Retailer 11
-
$5,084 SGD
View
Price last confirmed 56 days ago
Retailer 12
-
$5,187 SGD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$5,330 SGD
View
B+
Retailer 14
-
$5,432 SGD
View
B+
Retailer 15
-
$5,513 SGD
View
B+
Retailer 16
-
$5,759 SGD
View
B+
Retailer 17
-
$5,823 SGD
View
Retailer 18
-
$5,865 SGD
View
Price last confirmed 60 days ago
B+
Retailer 19
-
$6,228 SGD
View
B
Retailer 20
-
$7,967 SGD
View
B
Retailer 21
-
$8,775 SGD
View
B
Retailer 22
-
$9,599 SGD
View
Most Expensive
NZ Jewellers
b87281be-c421-4565-b3fd-f27d96f175c9 · Sep 10
$9,775 SGD
$7,653 USD
View
Price last confirmed 56 days ago
22 more retailers have this diamond
Prices start from $4,095 SGDSave up to $5,504 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 Round
$4,095 SGD