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Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 2536187901

Certificate GIA 2536187901

Diamond specifications and retailer prices

From $3,278 AUD
As of November 6, 2026
Save $3,845 AUD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,981 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2536187901. Listed at 22 retailers as of November 4, 2026, with a 117% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536187901
Dimensions8.06 × 5.70 × 3.49 mm
L/W Ratio1.41
Top View
8.06 mm5.70 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536187901
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 61.2%

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: $3,423 AUD|Low: $3,278 AUD|High: $7,466 AUD|Avg: $4,759 AUD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2$3,278 AUD
Retailer 1$3,423 AUD
Retailer 9$3,873 AUD
Retailer 10$3,916 AUD
Retailer 4$3,941 AUD
Retailer 3$4,478 AUD
Retailer 11$4,522 AUD
Retailer 6$4,566 AUD
Retailer 13$4,657 AUD
Retailer 7$4,973 AUD
Retailer 8$5,213 AUD
Retailer 12$7,123 AUD
Retailer 5$7,439 AUD

30 data points across 13 retailers

22 retailers$3,278 AUD to $7,123 AUD

A
Cheapest Retailer
-
$3,278 AUD
A
Retailer 2
-
$3,423 AUD
View
A
Retailer 3
-
$3,873 AUD
View
A
Retailer 4
-
$3,916 AUD
View
A
Retailer 5
-
$3,941 AUD
View
Final sale: no returns
A
Retailer 6
-
$4,110 AUD
View
A
Retailer 7
-
$4,112 AUD
View
Retailer 8
-
$4,296 AUD
View
Price last confirmed 19 days ago
Retailer 9
-
$4,296 AUD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$4,359 AUD
View
Retailer 11
-
$4,461 AUD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$4,478 AUD
View
B+
Retailer 13
-
$4,522 AUD
View
B+
Retailer 14
-
$4,566 AUD
View
B+
Retailer 15
-
$4,657 AUD
View
Retailer 16
-
$4,857 AUD
View
Price last confirmed 33 days ago
Retailer 17
-
$4,957 AUD
View
Price last confirmed 19 days ago
B+
Retailer 18
-
$4,973 AUD
View
B+
Retailer 19
-
$5,213 AUD
View
B
Retailer 20
-
$7,123 AUD
View
Retailer 21
-
$7,439 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
7c4b89fd-f10d-464b-a153-0de68a46a52c · Oct 17
$8,981 AUD
$6,171 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from $3,278 AUDSave up to $3,845 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
$3,278 AUD