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Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1553987872

Certificate GIA 1553987872

Diamond specifications and retailer prices

From $1,979 AUD
As of November 6, 2026
Save $4,424 AUD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,104 AUD at NZ Jewellers · As of August 29, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-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 1553987872. Listed at 12 retailers as of November 5, 2026, with a 224% 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553987872
Dimensions8.16 × 5.53 × 3.44 mm
L/W Ratio1.48
Girdle conditionThick
Top View
8.16 mm5.53 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553987872
Side View
Table 55.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.2%

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 6
Current: $6,404 AUD|Low: $1,979 AUD|High: $6,715 AUD|Avg: $3,310 AUD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,979 AUD
Retailer 9$2,094 AUD
Retailer 10$2,393 AUD
Retailer 8$2,707 AUD
Retailer 11$2,825 AUD
Retailer 5$2,915 AUD
Retailer 4$3,205 AUD
Retailer 7$3,583 AUD
Retailer 3$3,634 AUD
Retailer 6$4,587 AUD
NZ Jewellers$6,404 AUD

34 data points across 11 retailers

12 retailers$1,979 AUD to $6,404 AUD

A
Cheapest Retailer
-
$1,979 AUD
A
Retailer 2
-
$2,094 AUD
View
Final sale: no returns
B+
Retailer 3
-
$2,393 AUD
View
B+
Retailer 4
-
$2,707 AUD
View
B+
Retailer 5
-
$2,825 AUD
View
B+
Retailer 6
-
$2,915 AUD
View
B+
Retailer 7
-
$3,205 AUD
View
B+
Retailer 8
-
$3,583 AUD
View
Retailer 9
-
$3,634 AUD
View
Price last confirmed 32 days ago
B
Retailer 10
-
$4,587 AUD
View
B
Retailer 11
-
$6,404 AUD
View
Most Expensive
NZ Jewellers
1efc91e5-184a-41a5-82b1-23cc35e29b1a · Aug 29
$7,104 AUD
$4,881 USD
View
Price last confirmed 69 days ago
11 more retailers have this diamond
Prices start from $1,979 AUDSave up to $4,424 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
1.00ct Oval
$1,979 AUD