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Round|Lab Grown|IGI

1.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG642428460

Shape and cutting style on the report: Round brilliant

Certificate IGI LG642428460

Diamond specifications and retailer prices

From $419 NZD
As of November 3, 2026
Save $3,591 NZD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,009 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round 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 LG642428460 or 642428460. Listed at 22 retailers as of November 3, 2026, with prices from $419 to $4,009, a $3,591 spread on the same certified stone. Do Amore Diamonds lists it at $4,009. 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 angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642428460
Dimensions6.90 × 6.87 × 4.22 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.90 mm6.87 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642428460
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.3%

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: Nov 3
Current: $1,080 NZD|Low: $401 NZD|High: $2,317 NZD|Avg: $1,094 NZD|+3.6%
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
November 5, 2026
Retailer 2$419 NZD
Retailer 6$467 NZD
Retailer 3$484 NZD
Retailer 4$518 NZD
Retailer 13$518 NZD
Retailer 7$921 NZD
Retailer 10$986 NZD
Retailer 1$1,080 NZD
Retailer 8$1,403 NZD
Retailer 9$1,462 NZD
Retailer 12$1,699 NZD
Retailer 14$1,840 NZD
Retailer 5$2,120 NZD
Retailer 11$2,292 NZD

32 data points across 14 retailers

22 retailers$419 NZD to $4,009 NZD

A
Cheapest Retailer
-
$419 NZD
A
Retailer 2
-
$467 NZD
View
Final sale: no returns
A
Retailer 3
-
$484 NZD
View
A
Retailer 4
-
$518 NZD
View
Retailer 5
-
$518 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$695 NZD
View
Retailer 7
-
$749 NZD
View
Price last confirmed 62 days ago
A
Retailer 8
-
$921 NZD
View
A
Retailer 9
-
$928 NZD
View
A
Retailer 10
-
$944 NZD
View
A
Retailer 11
-
$986 NZD
View
A
Retailer 12
-
$1,080 NZD
View
A
Retailer 13
-
$1,103 NZD
View
B+
Retailer 14
-
$1,403 NZD
View
B+
Retailer 15
-
$1,462 NZD
View
Retailer 16
-
$1,699 NZD
View
Price last confirmed 7 days ago
B+
Retailer 17
-
$1,840 NZD
View
B+
Retailer 18
-
$2,120 NZD
View
B
Retailer 19
-
$2,138 NZD
View
B+
Retailer 20
-
$2,292 NZD
View
B
Retailer 21
-
$2,317 NZD
View
Most Expensive
B
Do Amore Diamonds
27-A4E666EBD · Nov 4
$4,009 NZD
$2,260 USD
View
21 more retailers have this diamond
Prices start from $419 NZDSave up to $3,591 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 Round
$419 NZD