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Oval|Natural|GIA

1.50ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1559595774

Certificate GIA 1559595774

Diamond specifications and retailer prices

From $4,467 SGD
HK$27,300 HKD
As of November 1, 2026
Save $5,940 SGD (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,524 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559595774. Listed at 26 retailers as of October 30, 2026, with a 133% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559595774
Dimensions8.73 × 6.41 × 4.07 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cloud, Needle, Indented Natural
Top View
8.73 mm6.41 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559595774
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.6%

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 1
Current: $10,407 SGD|Low: $4,435 SGD|High: $10,524 SGD|Avg: $6,387 SGD|-1.1%
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
November 1, 2026
Retailer 16$4,467 SGD
Retailer 11$4,775 SGD
Retailer 2$5,331 SGD
Retailer 6$5,514 SGD
Retailer 17$5,644 SGD
Retailer 8$5,691 SGD
Retailer 12$5,748 SGD
Retailer 14$5,940 SGD
Retailer 5$5,974 SGD
Retailer 9$5,974 SGD
Retailer 10$5,974 SGD
Retailer 3$6,166 SGD
Retailer 4$6,326 SGD
Retailer 18$6,761 SGD
Retailer 7$6,893 SGD
Retailer 15$7,343 SGD
Retailer 13$9,516 SGD
NZ Jewellers$10,407 SGD

19 data points across 18 retailers

26 retailers$4,467 SGD to $10,407 SGD

A
Cheapest Retailer
-
$4,467 SGD
HK$27,300 HKD
A
Retailer 2
-
$4,775 SGD
₹355,726 INR
View
B+
Retailer 3
-
$5,324 SGD
View
B+
Retailer 4
-
$5,331 SGD
$4,170 USD
View
B+
Retailer 5
-
$5,514 SGD
$4,313 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,535 SGD
$4,330 USD
View
B+
Retailer 7
-
$5,644 SGD
$4,415 USD
View
B+
Retailer 8
-
$5,691 SGD
View
B+
Retailer 9
-
$5,748 SGD
£3,540 GBP
View
B+
Retailer 10
-
$5,857 SGD
A$7,048 AUD
View
B+
Retailer 11
-
$5,940 SGD
£3,659 GBP
View
B+
Retailer 12
-
$5,974 SGD
$4,673 USD
View
B+
Retailer 13
-
$5,974 SGD
$4,673 USD
View
B+
Retailer 14
-
$5,974 SGD
$4,673 USD
View
Retailer 15
-
$6,040 SGD
$4,725 USD
View
Price last confirmed 16 days ago
Retailer 16
-
$6,040 SGD
$4,725 USD
View
Price last confirmed 14 days ago
Retailer 17
-
$6,125 SGD
A$7,371 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
$6,166 SGD
$4,823 USD
View
B+
Retailer 19
-
$6,326 SGD
$4,948 USD
View
B+
Retailer 20
-
$6,761 SGD
€5,037 EUR
View
B
Retailer 21
-
$6,893 SGD
$5,392 USD
View
Retailer 22
-
$6,970 SGD
$5,452 USD
View
Price last confirmed 14 days ago
B+
Retailer 23
-
$7,343 SGD
ZAR 92,795 ZAR
View
B
Retailer 24
-
$9,516 SGD
£5,861 GBP
View
B
Retailer 25
-
$10,407 SGD
$8,141 USD
View
Most Expensive
NZ Jewellers
abfc4749-cf77-454f-ace3-06e3f92758c4 · Oct 17
$10,524 SGD
$8,232 USD
View
Price last confirmed 15 days ago
25 more retailers have this diamond
Prices start from $4,467 SGDSave up to $5,940 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 Oval
$4,467 SGD