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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 $357 NZD
$201 USD
As of October 29, 2026
Save $3,068 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,424 NZD 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 $357 to $3,424, a $3,068 spread on the same certified stone. Brilliant Earth lists it at $3,424. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,424 NZD|Low: $348 NZD|High: $3,424 NZD|Avg: $1,160 NZD
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$357 NZD
Retailer 7$399 NZD
Retailer 16$413 NZD
Retailer 3$442 NZD
Retailer 18$442 NZD
Retailer 12$758 NZD
Retailer 8$768 NZD
Retailer 14$771 NZD
Retailer 2$810 NZD
Retailer 15$1,137 NZD
Retailer 5$1,403 NZD
Retailer 4$1,419 NZD
Retailer 9$1,485 NZD
Retailer 6$1,514 NZD
Retailer 17$1,563 NZD
Retailer 11$2,075 NZD
Retailer 13$2,608 NZD
Brilliant Earth$3,424 NZD

40 data points across 18 retailers

17 retailers$357 NZD to $3,424 NZD

A
Cheapest Retailer
-
$357 NZD
$201 USD
A
Retailer 2
-
$399 NZD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$413 NZD
$233 USD
View
A
Retailer 4
-
$442 NZD
$249 USD
View
A
Retailer 5
-
$442 NZD
$249 USD
View
A
Retailer 6
-
$758 NZD
ZAR 6,904 ZAR
View
A
Retailer 7
-
$768 NZD
$433 USD
View
A
Retailer 8
-
$810 NZD
£359 GBP
View
B+
Retailer 9
-
$1,137 NZD
$641 USD
View
B+
Retailer 10
-
$1,403 NZD
$791 USD
View
B+
Retailer 11
-
$1,419 NZD
$800 USD
View
B+
Retailer 12
-
$1,485 NZD
SGD 1,131 SGD
View
B+
Retailer 13
-
$1,514 NZD
$854 USD
View
B+
Retailer 14
-
$1,563 NZD
$881 USD
View
B+
Retailer 15
-
$2,075 NZD
£921 GBP
View
Retailer 16
-
$2,608 NZD
$1,470 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21434459A · Oct 29
$3,424 NZD
$1,930 USD
View
16 more retailers have this diamond
Prices start from $357 NZDSave up to $3,068 NZD

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
$357 NZD