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Oval|Natural|GIA

1.23ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 3545250166

Certificate GIA 3545250166

Diamond specifications and retailer prices

From $5,929 AUD
As of November 6, 2026
7 retailers carry this diamond
Most expensive: $10,515 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.23ct natural oval diamond

This 1.23ct natural oval sits in the classic one-carat band, graded E 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 3545250166. Listed at 7 retailers as of November 6, 2026. 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

1.23
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 3545250166
Dimensions8.44 × 6.02 × 3.73 mm
L/W Ratio1.40
Top View
8.44 mm6.02 mm1.23 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545250166
Side View
Table 62.0%CrownGirdle: STK-THKPavilion 39.5°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $6,622 AUD|Low: $4,569 AUD|High: $10,201 AUD|Avg: $6,139 AUD|+0.7%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 1, 2026
Retailer 8$4,569 AUD
Retailer 3$4,772 AUD
Retailer 4$4,800 AUD
Retailer 9$4,806 AUD
Retailer 18$4,998 AUD
Retailer 5$5,239 AUD
Retailer 13$5,442 AUD
Retailer 6$5,545 AUD
Retailer 7$5,929 AUD
Retailer 14$5,953 AUD
Retailer 12$6,135 AUD
Retailer 2$6,200 AUD
Retailer 11$6,273 AUD
Retailer 15$6,395 AUD
Retailer 10$6,477 AUD
Retailer 1$6,622 AUD
Retailer 16$7,260 AUD
Retailer 19$9,144 AUD
Retailer 17$10,201 AUD

7 data points across 19 retailers

7 retailers

Retailer 1
-
$4,806 AUD
Price last confirmed 60 days ago
Retailer 2
-
$5,545 AUD
View
Price last confirmed 41 days ago
B+
Retailer 3
-
$5,929 AUD
View
Retailer 4
-
$6,200 AUD
View
Price last confirmed 44 days ago
Retailer 5
-
$6,395 AUD
View
Price last confirmed 41 days ago
Retailer 6
-
$7,260 AUD
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
29ac6baa-f586-4d1a-91c6-1459b6fe8779 · Sep 25
$10,515 AUD
$7,225 USD
View
Price last confirmed 42 days ago
6 more retailers have this diamond
Prices start from $5,929 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+
1.23ct Oval
$5,929 AUD