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Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1535711463

Certificate GIA 1535711463

Diamond specifications and retailer prices

From $4,040 SGD
As of November 4, 2026
Save $5,036 SGD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,457 SGD at NZ Jewellers · As of October 20, 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 1535711463. Listed at 18 retailers as of November 2, 2026, with a 125% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1535711463
Dimensions7.32 × 7.29 × 4.49 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.32 mm7.29 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1535711463
Side View
Table 59.0%Crown 36°Girdle: Sli. ThickPavilion 40.6°Culet: NoneDepth 61.6%

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 4
Current: $9,457 SGD|Low: $4,040 SGD|High: $9,457 SGD|Avg: $6,194 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
November 6, 2026
Retailer 4$4,040 SGD
Retailer 10$4,394 SGD
Retailer 12$4,548 SGD
Retailer 13$4,700 SGD
Retailer 3$5,107 SGD
Retailer 9$5,467 SGD
Retailer 2$5,911 SGD
Retailer 5$5,933 SGD
Retailer 8$6,095 SGD
Retailer 7$6,131 SGD
Retailer 6$6,625 SGD
Retailer 11$9,076 SGD
NZ Jewellers$9,457 SGD

36 data points across 13 retailers

18 retailers$4,040 SGD to $9,076 SGD

A
Cheapest Retailer
-
$4,040 SGD
A
Retailer 2
-
$4,366 SGD
View
A
Retailer 3
-
$4,394 SGD
View
B+
Retailer 4
-
$4,548 SGD
View
B+
Retailer 5
-
$4,700 SGD
View
Retailer 6
-
$4,918 SGD
View
Price last confirmed 15 days ago
Retailer 7
-
$4,918 SGD
View
Price last confirmed 21 days ago
Retailer 8
-
$5,107 SGD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$5,467 SGD
View
Retailer 10
-
$5,675 SGD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$5,911 SGD
View
B+
Retailer 12
-
$5,933 SGD
View
B+
Retailer 13
-
$6,095 SGD
View
B+
Retailer 14
-
$6,131 SGD
View
Retailer 15
-
$6,141 SGD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$6,625 SGD
View
B
Retailer 17
-
$9,076 SGD
View
Most Expensive
NZ Jewellers
33a4f54c-80f2-41f5-a39c-395b47ca8e26 · Oct 20
$9,457 SGD
$7,404 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $4,040 SGDSave up to $5,036 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
$4,040 SGD