Radiant|Lab Grown|IGI

1.23ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG662464734

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG662464734

Diamond specifications and retailer prices

From $393 NZD
$221 USD
As of November 2, 2026
Save $3,055 NZD (89%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $3,448 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant 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 LG662464734 or 662464734. Listed at 28 retailers as of November 2, 2026, with prices from $393 to $3,448, a $3,055 spread on the same certified stone. Brilliant Earth lists it at $3,448. 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
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662464734
Dimensions7.89 × 5.32 × 3.49 mm
L/W Ratio1.48
Culet sizePointed
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
7.89 mm5.32 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662464734
Side View
Table 66.0%Crown 41.3°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 65.6%

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 2
Current: $3,448 NZD|Low: $393 NZD|High: $3,448 NZD|Avg: $1,203 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
November 2, 2026
Retailer 13$393 NZD
Retailer 11$441 NZD
Retailer 4$569 NZD
Retailer 14$690 NZD
Retailer 10$821 NZD
Retailer 9$842 NZD
Retailer 8$908 NZD
Retailer 5$919 NZD
Retailer 7$1,193 NZD
Retailer 6$1,420 NZD
Retailer 12$1,575 NZD
Retailer 3$1,906 NZD
Retailer 2$1,955 NZD
Brilliant Earth$3,448 NZD

43 data points across 14 retailers

28 retailers$393 NZD to $3,448 NZD

A
Cheapest Retailer
-
$393 NZD
$221 USD
Retailer 2
-
$393 NZD
$221 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$393 NZD
$221 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$441 NZD
$248 USD
View
Final sale: no returns
Retailer 5
-
$457 NZD
$257 USD
View
Price last confirmed 36 days ago
Retailer 6
-
$482 NZD
$271 USD
View
Price last confirmed 34 days ago
Retailer 7
-
$489 NZD
$275 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
$569 NZD
HK$2,500 HKD
View
A
Retailer 9
-
$690 NZD
$388 USD
View
A
Retailer 10
-
$821 NZD
€440 EUR
View
A
Retailer 11
-
$842 NZD
ZAR 7,658 ZAR
View
A
Retailer 12
-
$908 NZD
£402 GBP
View
A
Retailer 13
-
$919 NZD
$517 USD
View
A
Retailer 14
-
$1,058 NZD
$595 USD
View
A
Retailer 15
-
$1,193 NZD
A$1,033 AUD
View
B+
Retailer 16
-
$1,420 NZD
$799 USD
View
B+
Retailer 17
-
$1,569 NZD
$883 USD
View
Retailer 18
-
$1,569 NZD
$883 USD
View
Price last confirmed 23 days ago
Retailer 19
-
$1,569 NZD
$883 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$1,575 NZD
$886 USD
View
B+
Retailer 21
-
$1,653 NZD
SGD 1,257 SGD
View
B+
Retailer 22
-
$1,662 NZD
$935 USD
View
B+
Retailer 23
-
$1,776 NZD
$999 USD
View
Retailer 24
-
$1,906 NZD
A$1,650 AUD
View
Price last confirmed 28 days ago
B+
Retailer 25
-
$1,955 NZD
£866 GBP
View
B
Retailer 26
-
$2,243 NZD
$1,262 USD
View
Retailer 27
-
$2,593 NZD
$1,459 USD
View
Price last confirmed 57 days ago
Most Expensive
B
Brilliant Earth
12314679A · Nov 2
$3,448 NZD
$1,940 USD
View
27 more retailers have this diamond
Prices start from $393 NZDSave up to $3,055 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 Radiant
$393 NZD