Oval|Natural|GIA

1.50ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1559595774

Certificate GIA 1559595774

Diamond specifications and retailer prices

From $3,494 USD
HK$27,300 HKD
As of October 31, 2026
Save $4,647 USD (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $8,232 USD 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
Color
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: Oct 31
Current: $8,141 USD|Low: $3,469 USD|High: $8,232 USD|Avg: $4,933 USD|-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
Retailer 19
October 31, 2026
Retailer 13$3,494 USD
Retailer 12$3,736 USD
Retailer 11$4,165 USD
Retailer 10$4,220 USD
Retailer 5$4,313 USD
Retailer 14$4,415 USD
Retailer 7$4,452 USD
Retailer 17$4,510 USD
Retailer 15$4,647 USD
Retailer 4$4,673 USD
Retailer 8$4,673 USD
Retailer 9$4,673 USD
Retailer 19$4,823 USD
Retailer 3$4,948 USD
Retailer 16$5,289 USD
Retailer 6$5,392 USD
Retailer 2$5,744 USD
Retailer 18$7,483 USD
NZ Jewellers$8,141 USD

19 data points across 19 retailers

26 retailers$3,494 USD to $8,141 USD

A
Cheapest Retailer
-
$3,494 USD
HK$27,300 HKD
A
Retailer 2
-
$3,736 USD
₹355,803 INR
View
B+
Retailer 3
-
$4,165 USD
SGD 5,628 SGD
View
Retailer 4
-
$4,220 USD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$4,313 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,330 USD
View
B+
Retailer 7
-
$4,415 USD
View
B+
Retailer 8
-
$4,452 USD
SGD 6,016 SGD
View
B+
Retailer 9
-
$4,510 USD
£3,551 GBP
View
B+
Retailer 10
-
$4,581 USD
A$7,048 AUD
View
B+
Retailer 11
-
$4,647 USD
£3,659 GBP
View
B+
Retailer 12
-
$4,673 USD
View
B+
Retailer 13
-
$4,673 USD
View
B+
Retailer 14
-
$4,673 USD
View
Retailer 15
-
$4,725 USD
View
Price last confirmed 15 days ago
Retailer 16
-
$4,725 USD
View
Price last confirmed 13 days ago
Retailer 17
-
$4,791 USD
A$7,371 AUD
View
Price last confirmed 22 days ago
B+
Retailer 18
-
$4,823 USD
View
B+
Retailer 19
-
$4,948 USD
View
B+
Retailer 20
-
$5,289 USD
€5,037 EUR
View
B
Retailer 21
-
$5,392 USD
View
Retailer 22
-
$5,452 USD
View
Price last confirmed 13 days ago
B+
Retailer 23
-
$5,744 USD
ZAR 92,795 ZAR
View
B
Retailer 24
-
$7,483 USD
£5,892 GBP
View
B
Retailer 25
-
$8,141 USD
View
Most Expensive
NZ Jewellers
abfc4749-cf77-454f-ace3-06e3f92758c4 · Oct 17
$8,232 USD
View
Price last confirmed 14 days ago
25 more retailers have this diamond
Prices start from $3,494 USDSave up to $4,647 USD

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
$3,494 USD