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Round|Lab Grown|IGI

1.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG816612569

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816612569

Diamond specifications and retailer prices

From $410 NZD
As of November 4, 2026
Save $2,429 NZD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,838 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 LG816612569 or 816612569. Listed at 22 retailers as of November 4, 2026, with prices from $410 to $2,838, a $2,429 spread on the same certified stone. Brilliant Earth lists it at $2,838. 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 angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612569
Dimensions6.90 × 6.87 × 4.23 mm
L/W Ratio1.00
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
6.90 mm6.87 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612569
Side View
Table 58.0%Crown 34.9°Girdle: MediumPavilion 40.7°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 4
Current: $2,838 NZD|Low: $410 NZD|High: $2,927 NZD|Avg: $1,247 NZD|-3.0%
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
November 5, 2026
Retailer 4$410 NZD
Retailer 6$456 NZD
Retailer 3$642 NZD
Retailer 13$770 NZD
Retailer 11$788 NZD
Retailer 2$800 NZD
Retailer 5$976 NZD
Retailer 10$1,116 NZD
Retailer 12$1,167 NZD
Retailer 15$1,171 NZD
Retailer 9$1,515 NZD
Retailer 8$2,061 NZD
Retailer 14$2,138 NZD
Retailer 7$2,159 NZD
Brilliant Earth$2,838 NZD

35 data points across 15 retailers

22 retailers$410 NZD to $2,838 NZD

Retailer 1
-
$367 NZD
Price last confirmed 44 days ago
Retailer 2
-
$367 NZD
View
Price last confirmed 26 days ago
A
Retailer 3
-
$410 NZD
View
Final sale: no returns
Retailer 4
-
$428 NZD
View
Price last confirmed 44 days ago
Retailer 5
-
$451 NZD
View
Price last confirmed 42 days ago
Retailer 6
-
$456 NZD
View
Price last confirmed 24 days ago
Retailer 7
-
$456 NZD
View
Price last confirmed 34 days ago
B+
Retailer 8
-
$642 NZD
View
A
Retailer 9
-
$770 NZD
View
A
Retailer 10
-
$788 NZD
View
A
Retailer 11
-
$800 NZD
View
A
Retailer 12
-
$976 NZD
View
A
Retailer 13
-
$1,116 NZD
View
A
Retailer 14
-
$1,167 NZD
View
B+
Retailer 15
-
$1,171 NZD
View
Retailer 16
-
$1,467 NZD
View
Price last confirmed 37 days ago
Retailer 17
-
$1,467 NZD
View
Price last confirmed 40 days ago
B+
Retailer 18
-
$1,515 NZD
View
B
Retailer 19
-
$2,061 NZD
View
B
Retailer 20
-
$2,138 NZD
View
B
Retailer 21
-
$2,159 NZD
View
Most Expensive
B
Brilliant Earth
21018932A · Nov 4
$2,838 NZD
$1,600 USD
View
21 more retailers have this diamond
Prices start from $410 NZDSave up to $2,429 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
$410 NZD