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Round|Lab Grown|IGI

1.09ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG800678455

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800678455

Diamond specifications and retailer prices

From €383 EUR
$428 USD
As of October 30, 2026
Save €856 EUR (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,239 EUR at MOH London · As of October 29, 2026
View at MOH London

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 LG800678455 or 800678455. Listed at 13 retailers as of October 29, 2026, with prices from €383 to €1,239, a €856 spread on the same certified stone. MOH London lists it at €1,239. 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 angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800678455
Dimensions6.67 × 6.64 × 4.04 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
6.67 mm6.64 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800678455
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.7%

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: €1,239 EUR|Low: €376 EUR|High: €1,405 EUR|Avg: €744 EUR|-4.8%
MOH London
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 31, 2026
Retailer 13€383 EUR
Retailer 10€424 EUR
Retailer 4€434 EUR
Retailer 11€499 EUR
Retailer 2€508 EUR
Retailer 8€528 EUR
Retailer 7€540 EUR
Retailer 5€633 EUR
Retailer 12€687 EUR
Retailer 9€953 EUR
Retailer 3€1,138 EUR
Retailer 6€1,190 EUR
MOH London€1,239 EUR

41 data points across 13 retailers

13 retailers€383 EUR to €1,239 EUR

A
Cheapest Retailer
-
€383 EUR
$428 USD
A
Retailer 2
-
€424 EUR
HK$3,700 HKD
View
A
Retailer 3
-
€434 EUR
$485 USD
View
A
Retailer 4
-
€499 EUR
$558 USD
View
A
Retailer 5
-
€508 EUR
View
A
Retailer 6
-
€528 EUR
ZAR 9,537 ZAR
View
A
Retailer 7
-
€540 EUR
£475 GBP
View
B+
Retailer 8
-
€633 EUR
A$1,088 AUD
View
B+
Retailer 9
-
€687 EUR
$767 USD
View
B
Retailer 10
-
€953 EUR
$1,065 USD
View
B
Retailer 11
-
€1,138 EUR
$1,271 USD
View
B
Retailer 12
-
€1,190 EUR
$1,330 USD
View
Most Expensive
B
MOH London
LG800678455 · Oct 29
€1,239 EUR
£1,090 GBP
View
12 more retailers have this diamond
Prices start from €383 EURSave up to €856 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
€383 EUR