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Oval|Natural|GIA

1.28ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2547009065

Certificate GIA 2547009065

Diamond specifications and retailer prices

From $4,424 AUD
As of November 7, 2026
Save $5,606 AUD (56%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $10,031 AUD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.28ct natural oval diamond

This 1.28ct natural oval sits in the one-and-a-quarter to one-and-a-half 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 2547009065. Listed at 32 retailers as of November 7, 2026, with prices from $4,424 to $10,031, a $5,606 spread on the same certified stone. NZ Jewellers lists it at $10,031. 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

1.28
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2547009065
Dimensions8.63 × 6.10 × 3.76 mm
L/W Ratio1.41
Top View
8.63 mm6.10 mm1.28 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2547009065
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $10,031 AUD|Low: $4,452 AUD|High: $10,031 AUD|Avg: $6,458 AUD
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
November 7, 2026
Retailer 8$4,452 AUD
Retailer 5$4,577 AUD
Retailer 14$5,104 AUD
Retailer 9$5,216 AUD
Retailer 10$5,286 AUD
Retailer 6$5,417 AUD
Retailer 13$5,549 AUD
Retailer 7$5,577 AUD
Retailer 16$5,830 AUD
Retailer 2$6,052 AUD
Retailer 4$6,167 AUD
Retailer 12$6,239 AUD
Retailer 3$6,514 AUD
Retailer 17$7,027 AUD
Retailer 11$7,258 AUD
Retailer 15$9,575 AUD
NZ Jewellers$10,031 AUD

43 data points across 17 retailers

32 retailers$4,424 AUD to $10,031 AUD

B+
Cheapest Retailer
-
$4,424 AUD
B+
Retailer 2
-
$4,452 AUD
View
B+
Retailer 3
-
$4,536 AUD
View
B+
Retailer 4
-
$4,577 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,631 AUD
View
B
Retailer 6
-
$4,899 AUD
View
B
Retailer 7
-
$4,956 AUD
View
B
Retailer 8
-
$5,014 AUD
View
B
Retailer 9
-
$5,104 AUD
View
B
Retailer 10
-
$5,216 AUD
View
B
Retailer 11
-
$5,216 AUD
View
B+
Retailer 12
-
$5,286 AUD
View
B
Retailer 13
-
$5,417 AUD
View
B
Retailer 14
-
$5,549 AUD
View
B
Retailer 15
-
$5,577 AUD
View
B
Retailer 16
-
$5,673 AUD
View
B
Retailer 17
-
$5,673 AUD
View
B
Retailer 18
-
$5,830 AUD
View
B
Retailer 19
-
$5,894 AUD
View
B
Retailer 20
-
$5,894 AUD
View
B
Retailer 21
-
$6,018 AUD
View
B
Retailer 22
-
$6,052 AUD
View
B
Retailer 23
-
$6,098 AUD
View
Retailer 24
-
$6,167 AUD
View
Price last confirmed 30 days ago
B
Retailer 25
-
$6,239 AUD
View
B
Retailer 26
-
$6,514 AUD
View
B
Retailer 27
-
$6,769 AUD
View
B
Retailer 28
-
$7,027 AUD
View
B
Retailer 29
-
$7,258 AUD
View
B
Retailer 30
-
$8,319 AUD
View
B
Retailer 31
-
$9,575 AUD
View
Most Expensive
B
NZ Jewellers
9fc7498b-d657-424c-a631-b4c64e9afbe9 · Nov 7
$10,031 AUD
$6,892 USD
View
31 more retailers have this diamond
Prices start from $4,424 AUDSave up to $5,606 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.

B+
1.28ct Oval
$4,424 AUD