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Heart|Lab Grown|IGI

1.09ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG816624115

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816624115

Diamond specifications and retailer prices

From €289 EUR
$323 USD
As of October 30, 2026
Save €1,483 EUR (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,772 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart 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 LG816624115 or 816624115. Listed at 19 retailers as of October 30, 2026, with prices from €289 to €1,772, a €1,483 spread on the same certified stone. Brilliant Earth lists it at €1,772. 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 angle35.6°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624115
Dimensions7.04 × 6.46 × 4.07 mm
L/W Ratio1.09
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
7.04 mm6.46 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624115
Side View
Table 57.0%Crown 35.6°Girdle: STK-THKPavilion 38.7°Culet: NoneDepth 57.8%

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: Oct 30
Current: €1,772 EUR|Low: €288 EUR|High: €2,068 EUR|Avg: €946 EUR|-14.3%
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
October 31, 2026
Retailer 4€289 EUR
Retailer 6€448 EUR
Retailer 11€455 EUR
Retailer 8€456 EUR
Retailer 2€524 EUR
Retailer 12€553 EUR
Retailer 7€569 EUR
Retailer 14€601 EUR
Retailer 3€719 EUR
Retailer 9€817 EUR
Retailer 5€1,078 EUR
Retailer 10€1,296 EUR
Retailer 13€1,325 EUR
Brilliant Earth€1,772 EUR

34 data points across 14 retailers

19 retailers€289 EUR to €1,772 EUR

A
Cheapest Retailer
-
€289 EUR
$323 USD
Final sale: no returns
Retailer 2
-
€362 EUR
$404 USD
View
Price last confirmed 23 days ago
Retailer 3
-
€405 EUR
$453 USD
View
Price last confirmed 33 days ago
Retailer 4
-
€443 EUR
$495 USD
View
Price last confirmed 36 days ago
Retailer 5
-
€448 EUR
$501 USD
View
Price last confirmed 19 days ago
Retailer 6
-
€448 EUR
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
€455 EUR
$508 USD
View
A
Retailer 8
-
€456 EUR
$510 USD
View
A
Retailer 9
-
€524 EUR
View
B+
Retailer 10
-
€553 EUR
ZAR 9,974 ZAR
View
B+
Retailer 11
-
€569 EUR
£500 GBP
View
B+
Retailer 12
-
€601 EUR
$671 USD
View
B+
Retailer 13
-
€719 EUR
$803 USD
View
B+
Retailer 14
-
€817 EUR
$913 USD
View
B
Retailer 15
-
€1,078 EUR
$1,204 USD
View
B
Retailer 16
-
€1,296 EUR
£1,140 GBP
View
B
Retailer 17
-
€1,325 EUR
$1,480 USD
View
Retailer 18
-
€1,443 EUR
$1,612 USD
View
Price last confirmed 31 days ago
Most Expensive
B
Brilliant Earth
21018290A · Oct 31
€1,772 EUR
$1,980 USD
View
18 more retailers have this diamond
Prices start from €289 EURSave up to €1,483 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
€289 EUR