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Heart|Lab Grown|IGI

1.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818663190

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818663190

Diamond specifications and retailer prices

From €364 EUR
$407 USD
As of November 1, 2026
Save €1,217 EUR (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,581 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663190 or 818663190. Listed at 17 retailers as of November 1, 2026, with prices from €364 to €1,581, a €1,217 spread on the same certified stone. MOH London lists it at €1,581. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663190
Dimensions6.35 × 7.16 × 4.09 mm
L/W Ratio1.13
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
6.35 mm7.16 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663190
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 57.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,581 EUR|Low: €364 EUR|High: €1,818 EUR|Avg: €981 EUR|-12.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12€364 EUR
Retailer 4€490 EUR
Retailer 5€542 EUR
Retailer 8€571 EUR
Retailer 10€610 EUR
Retailer 7€695 EUR
Retailer 2€730 EUR
Retailer 11€925 EUR
Retailer 6€1,001 EUR
Retailer 3€1,337 EUR
Retailer 9€1,539 EUR
MOH London€1,581 EUR

34 data points across 12 retailers

17 retailers€364 EUR to €1,581 EUR

A
Cheapest Retailer
-
€364 EUR
$407 USD
Final sale: no returns
Retailer 2
-
€394 EUR
$440 USD
View
Price last confirmed 24 days ago
Retailer 3
-
€442 EUR
$494 USD
View
Price last confirmed 34 days ago
Retailer 4
-
€483 EUR
$540 USD
View
Price last confirmed 37 days ago
Retailer 5
-
€488 EUR
$545 USD
View
Price last confirmed 29 days ago
Retailer 6
-
€488 EUR
$545 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
€542 EUR
$605 USD
View
B+
Retailer 8
-
€571 EUR
$638 USD
View
B+
Retailer 9
-
€610 EUR
$682 USD
View
B+
Retailer 10
-
€695 EUR
ZAR 12,552 ZAR
View
B+
Retailer 11
-
€730 EUR
£642 GBP
View
B+
Retailer 12
-
€925 EUR
$1,033 USD
View
B+
Retailer 13
-
€1,001 EUR
$1,118 USD
View
B
Retailer 14
-
€1,337 EUR
$1,494 USD
View
B
Retailer 15
-
€1,539 EUR
$1,719 USD
View
Retailer 16
-
€1,568 EUR
$1,752 USD
View
Price last confirmed 28 days ago
Most Expensive
B
MOH London
LG818663190 · Nov 1
€1,581 EUR
£1,391 GBP
View
16 more retailers have this diamond
Prices start from €364 EURSave up to €1,217 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 Heart
€364 EUR