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Round|Lab Grown|IGI

1.09ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818671756

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818671756

Diamond specifications and retailer prices

From €242 EUR
$270 USD
As of October 30, 2026
Save €967 EUR (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,208 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown round diamond

This 1.09ct 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 LG818671756 or 818671756. Listed at 21 retailers as of October 30, 2026, with prices from €242 to €1,208, a €967 spread on the same certified stone. Brilliant Earth lists it at €1,208. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818671756
Dimensions6.62 × 6.59 × 4.08 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
6.62 mm6.59 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818671756
Side View
Table 56.0%Crown 34.7°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.7%

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 30
Current: €1,208 EUR|Low: €184 EUR|High: €1,369 EUR|Avg: €680 EUR|-11.8%
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
October 30, 2026
Retailer 12€242 EUR
Retailer 8€378 EUR
Retailer 7€447 EUR
Retailer 5€448 EUR
Retailer 10€461 EUR
Retailer 11€491 EUR
Retailer 6€508 EUR
Retailer 13€587 EUR
Retailer 2€668 EUR
Retailer 4€909 EUR
Retailer 3€1,078 EUR
Retailer 9€1,188 EUR
Brilliant Earth€1,208 EUR

35 data points across 13 retailers

21 retailers€242 EUR to €1,208 EUR

Retailer 1
-
€228 EUR
$255 USD
Price last confirmed 21 days ago
Retailer 2
-
€232 EUR
$259 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
€242 EUR
$270 USD
View
Final sale: no returns
Retailer 4
-
€269 EUR
$300 USD
View
Price last confirmed 39 days ago
Retailer 5
-
€283 EUR
$316 USD
View
Price last confirmed 19 days ago
Retailer 6
-
€283 EUR
$316 USD
View
Price last confirmed 29 days ago
Retailer 7
-
€284 EUR
$317 USD
View
Price last confirmed 36 days ago
A
Retailer 8
-
€378 EUR
$422 USD
View
A
Retailer 9
-
€447 EUR
View
Retailer 10
-
€448 EUR
$500 USD
View
Price last confirmed 5 days ago
A
Retailer 11
-
€461 EUR
ZAR 8,324 ZAR
View
A
Retailer 12
-
€491 EUR
$549 USD
View
A
Retailer 13
-
€508 EUR
£447 GBP
View
B+
Retailer 14
-
€587 EUR
$656 USD
View
B+
Retailer 15
-
€668 EUR
$746 USD
View
B
Retailer 16
-
€909 EUR
$1,016 USD
View
Retailer 17
-
€910 EUR
$1,017 USD
View
Price last confirmed 31 days ago
Retailer 18
-
€924 EUR
$1,032 USD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
€1,078 EUR
£948 GBP
View
B
Retailer 20
-
€1,188 EUR
$1,327 USD
View
Most Expensive
B
Brilliant Earth
21242396A · Oct 30
€1,208 EUR
$1,350 USD
View
20 more retailers have this diamond
Prices start from €242 EURSave up to €967 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
1.09ct Round
€242 EUR