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Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 3425008603

Certificate GIA 3425008603

Diamond specifications and retailer prices

From $5,035 SGD
As of November 6, 2026
Save $6,407 SGD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,442 SGD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3425008603. Listed at 16 retailers as of November 5, 2026, with prices from $5,035 to $11,442, a $6,407 spread on the same certified stone. NZ Jewellers lists it at $11,442. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3425008603
Dimensions7.29 × 7.26 × 4.54 mm
L/W Ratio1.00
Top View
7.29 mm7.26 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3425008603
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: $11,442 SGD|Low: $5,002 SGD|High: $11,442 SGD|Avg: $7,213 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
November 6, 2026
Retailer 13$5,035 SGD
Retailer 3$5,151 SGD
Retailer 11$5,262 SGD
Retailer 5$5,768 SGD
Retailer 14$5,773 SGD
Retailer 4$6,197 SGD
Retailer 15$6,197 SGD
Retailer 6$6,530 SGD
Retailer 9$6,565 SGD
Retailer 12$7,044 SGD
Retailer 7$7,152 SGD
Retailer 2$7,449 SGD
Retailer 8$8,347 SGD
Retailer 10$10,866 SGD
NZ Jewellers$11,442 SGD

38 data points across 15 retailers

16 retailers$5,035 SGD to $11,442 SGD

B+
Cheapest Retailer
-
$5,035 SGD
B+
Retailer 2
-
$5,151 SGD
View
A
Retailer 3
-
$5,262 SGD
View
B+
Retailer 4
-
$5,768 SGD
View
B+
Retailer 5
-
$5,773 SGD
View
B+
Retailer 6
-
$6,197 SGD
View
B+
Retailer 7
-
$6,197 SGD
View
B
Retailer 8
-
$6,530 SGD
View
B+
Retailer 9
-
$6,565 SGD
View
B+
Retailer 10
-
$7,044 SGD
View
B
Retailer 11
-
$7,152 SGD
View
B+
Retailer 12
-
$7,449 SGD
View
Retailer 13
-
$7,661 SGD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$8,347 SGD
View
B
Retailer 15
-
$10,866 SGD
View
Most Expensive
B
NZ Jewellers
d005f766-8512-42a3-90e3-1ed707413889 · Nov 5
$11,442 SGD
$8,958 USD
View
15 more retailers have this diamond
Prices start from $5,035 SGDSave up to $6,407 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
$5,035 SGD