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Round|Lab Grown|IGI

1.23ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG816613126

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613126

Diamond specifications and retailer prices

From €247 EUR
$276 USD
As of October 29, 2026
Save €1,328 EUR (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,575 EUR at Brilliant Earth · As of October 29, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816613126 or 816613126. Listed at 20 retailers as of October 29, 2026, with prices from €247 to €1,575, a €1,328 spread on the same certified stone. Brilliant Earth lists it at €1,575. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613126
Dimensions6.97 × 6.93 × 4.19 mm
L/W Ratio1.01
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
6.97 mm6.93 mm1.23 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613126
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.2%

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: €1,575 EUR|Low: €237 EUR|High: €1,575 EUR|Avg: €651 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 12
Retailer 13
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Retailer 20
October 31, 2026
Retailer 3€247 EUR
Retailer 10€276 EUR
Retailer 20€286 EUR
Retailer 12€306 EUR
Retailer 19€306 EUR
Retailer 6€431 EUR
Retailer 2€448 EUR
Retailer 15€504 EUR
Retailer 17€526 EUR
Retailer 13€537 EUR
Retailer 7€597 EUR
Retailer 5€611 EUR
Retailer 8€680 EUR
Retailer 14€773 EUR
Retailer 18€984 EUR
Retailer 9€1,029 EUR
Retailer 16€1,233 EUR
Retailer 11€1,285 EUR
Retailer 4€1,374 EUR
Brilliant Earth€1,575 EUR

36 data points across 20 retailers

20 retailers€247 EUR to €1,575 EUR

A
Cheapest Retailer
-
€247 EUR
$276 USD
A
Retailer 2
-
€276 EUR
$308 USD
View
Final sale: no returns
A
Retailer 3
-
€286 EUR
$320 USD
View
A
Retailer 4
-
€306 EUR
$342 USD
View
Retailer 5
-
€306 EUR
$342 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
€431 EUR
$482 USD
View
A
Retailer 7
-
€448 EUR
$500 USD
View
A
Retailer 8
-
€504 EUR
View
A
Retailer 9
-
€526 EUR
ZAR 9,490 ZAR
View
A
Retailer 10
-
€537 EUR
£473 GBP
View
B+
Retailer 11
-
€597 EUR
$667 USD
View
B+
Retailer 12
-
€611 EUR
$683 USD
View
B+
Retailer 13
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€680 EUR
$760 USD
View
B+
Retailer 14
-
€773 EUR
$864 USD
View
B+
Retailer 15
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€984 EUR
$1,099 USD
View
B
Retailer 16
-
€1,029 EUR
$1,150 USD
View
B+
Retailer 17
-
€1,233 EUR
£1,085 GBP
View
B
Retailer 18
-
€1,285 EUR
$1,435 USD
View
Retailer 19
-
€1,374 EUR
$1,535 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21018332A · Oct 29
€1,575 EUR
$1,760 USD
View
19 more retailers have this diamond
Prices start from €247 EURSave up to €1,328 EUR

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
€247 EUR