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Oval|Lab Grown|IGI

1.23ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG816625304

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816625304

Diamond specifications and retailer prices

From $286 AUD
$201 USD
As of October 29, 2026
Save $2,461 AUD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,747 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816625304 or 816625304. Listed at 17 retailers as of October 29, 2026, with prices from $286 to $2,747, a $2,461 spread on the same certified stone. Brilliant Earth lists it at $2,747. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816625304
Dimensions8.61 × 6.12 × 3.69 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.61 mm6.12 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816625304
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,747 AUD|Low: $279 AUD|High: $2,747 AUD|Avg: $930 AUD
Brilliant Earth
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
October 30, 2026
Retailer 10$286 AUD
Retailer 7$320 AUD
Retailer 16$332 AUD
Retailer 3$354 AUD
Retailer 18$354 AUD
Retailer 12$608 AUD
Retailer 8$616 AUD
Retailer 14$619 AUD
Retailer 2$650 AUD
Retailer 15$912 AUD
Retailer 5$1,126 AUD
Retailer 4$1,139 AUD
Retailer 9$1,191 AUD
Retailer 6$1,215 AUD
Retailer 17$1,254 AUD
Retailer 11$1,665 AUD
Retailer 13$2,092 AUD
Brilliant Earth$2,747 AUD

40 data points across 18 retailers

17 retailers$286 AUD to $2,747 AUD

A
Cheapest Retailer
-
$286 AUD
$201 USD
A
Retailer 2
-
$320 AUD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$332 AUD
$233 USD
View
A
Retailer 4
-
$354 AUD
$249 USD
View
A
Retailer 5
-
$354 AUD
$249 USD
View
A
Retailer 6
-
$608 AUD
ZAR 6,904 ZAR
View
A
Retailer 7
-
$616 AUD
$433 USD
View
A
Retailer 8
-
$650 AUD
£359 GBP
View
B+
Retailer 9
-
$912 AUD
$641 USD
View
B+
Retailer 10
-
$1,126 AUD
$791 USD
View
B+
Retailer 11
-
$1,139 AUD
$800 USD
View
B+
Retailer 12
-
$1,191 AUD
SGD 1,131 SGD
View
B+
Retailer 13
-
$1,215 AUD
$854 USD
View
B+
Retailer 14
-
$1,254 AUD
$881 USD
View
B+
Retailer 15
-
$1,665 AUD
£921 GBP
View
Retailer 16
-
$2,092 AUD
$1,470 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21434459A · Oct 29
$2,747 AUD
$1,930 USD
View
16 more retailers have this diamond
Prices start from $286 AUDSave up to $2,461 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
1.23ct Oval
$286 AUD