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Oval|Natural|GIA

1.50ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 3545152955

Certificate GIA 3545152955

Diamond specifications and retailer prices

From $5,667 AUD
HK$31,100 HKD
As of November 1, 2026
Save $6,579 AUD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $12,246 AUD at NZ Jewellers · As of October 30, 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 3545152955. Listed at 25 retailers as of October 30, 2026, with prices from $5,667 to $12,246, a $6,579 spread on the same certified stone. NZ Jewellers lists it at $12,246. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.15°
Pavilion angle37.85°
OriginNatural
Grading LabGIA
CertificateGIA 3545152955
Dimensions8.67 × 6.28 × 4.08 mm
L/W Ratio1.38
Top View
8.67 mm6.28 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545152955
Side View
Table 64.0%Crown 40.15°Girdle: THK-VTKPavilion 37.85°Culet: NoneDepth 64.9%

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: $5,772 AUD|Low: $5,667 AUD|High: $11,802 AUD|Avg: $7,625 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$5,667 AUD
Retailer 1$5,772 AUD
Retailer 11$6,492 AUD
Retailer 2$6,758 AUD
Retailer 7$6,813 AUD
Retailer 4$7,045 AUD
Retailer 6$7,309 AUD
Retailer 3$7,381 AUD
Retailer 10$8,286 AUD
Retailer 8$9,000 AUD
Retailer 5$11,661 AUD

25 data points across 11 retailers

25 retailers$5,667 AUD to $12,246 AUD

A
Cheapest Retailer
-
$5,667 AUD
HK$31,100 HKD
A
Retailer 2
-
$5,772 AUD
₹386,113 INR
View
B+
Retailer 3
-
$6,251 AUD
$4,391 USD
View
B+
Retailer 4
-
$6,386 AUD
$4,486 USD
View
B+
Retailer 5
-
$6,492 AUD
SGD 6,163 SGD
View
B+
Retailer 6
-
$6,758 AUD
$4,747 USD
View
Final sale: no returns
B+
Retailer 7
-
$6,813 AUD
$4,786 USD
View
B+
Retailer 8
-
$6,876 AUD
$4,830 USD
View
B+
Retailer 9
-
$7,045 AUD
£3,897 GBP
View
B+
Retailer 10
-
$7,201 AUD
SGD 6,836 SGD
View
B+
Retailer 11
-
$7,309 AUD
£4,042 GBP
View
B
Retailer 12
-
$7,322 AUD
$5,143 USD
View
B
Retailer 13
-
$7,322 AUD
$5,143 USD
View
B
Retailer 14
-
$7,322 AUD
$5,143 USD
View
Retailer 15
-
$7,381 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$7,538 AUD
$5,295 USD
View
B
Retailer 17
-
$7,579 AUD
$5,324 USD
View
B
Retailer 18
-
$7,682 AUD
$5,396 USD
View
B+
Retailer 19
-
$8,286 AUD
€5,543 EUR
View
B
Retailer 20
-
$8,448 AUD
$5,934 USD
View
B
Retailer 21
-
$9,000 AUD
ZAR 102,129 ZAR
View
B
Retailer 22
-
$10,748 AUD
$7,550 USD
View
B
Retailer 23
-
$11,049 AUD
$7,762 USD
View
B
Retailer 24
-
$11,661 AUD
£6,450 GBP
View
Most Expensive
B
NZ Jewellers
59d7d7c6-3498-47e1-8c27-a3a8459836ca · Oct 30
$12,246 AUD
$8,602 USD
View
24 more retailers have this diamond
Prices start from $5,667 AUDSave up to $6,579 AUD

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
$5,667 AUD