CaratHunter
Plans
Heart|Lab Grown|IGI

1.09ct E FL Heart Lab Grown Diamond

GD • E/FL • IGI LG818657606

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818657606

Diamond specifications and retailer prices

From €312 EUR
$349 USD
As of October 30, 2026
Save €1,080 EUR (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,443 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 standard cut grade and certified by IGI LG818657606 or 818657606. Listed at 18 retailers as of October 29, 2026, with a 346% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657606
Dimensions6.55 × 7.07 × 4.03 mm
L/W Ratio1.08
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
6.55 mm7.07 mm1.09 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657606
Side View
Table 59.0%Crown 36.9°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 57.0%

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: €615 EUR|Low: €288 EUR|High: €1,776 EUR|Avg: €893 EUR|-15.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3€312 EUR
Retailer 5€448 EUR
Retailer 11€488 EUR
Retailer 7€524 EUR
Retailer 6€561 EUR
Retailer 10€594 EUR
Retailer 13€608 EUR
Retailer 1€615 EUR
Retailer 2€778 EUR
Retailer 8€884 EUR
Retailer 4€1,152 EUR
Retailer 12€1,386 EUR
Retailer 9€1,393 EUR

35 data points across 13 retailers

18 retailers€312 EUR to €1,393 EUR

A
Cheapest Retailer
-
€312 EUR
$349 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 37 days ago
Retailer 5
-
€448 EUR
$501 USD
View
Price last confirmed 29 days ago
Retailer 6
-
€448 EUR
$501 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€488 EUR
$545 USD
View
B+
Retailer 8
-
€524 EUR
$585 USD
View
B+
Retailer 9
-
€561 EUR
View
B+
Retailer 10
-
€594 EUR
ZAR 10,717 ZAR
View
B+
Retailer 11
-
€608 EUR
$679 USD
View
B+
Retailer 12
-
€615 EUR
£541 GBP
View
B
Retailer 13
-
€778 EUR
$869 USD
View
B
Retailer 14
-
€884 EUR
$988 USD
View
B
Retailer 15
-
€1,152 EUR
$1,287 USD
View
B
Retailer 16
-
€1,386 EUR
$1,549 USD
View
B
Retailer 17
-
€1,393 EUR
£1,225 GBP
View
Most Expensive
NZ Jewellers
9d2c8750-d434-4852-968d-0a9f35b2a6f9 · Sep 30
€1,443 EUR
$1,612 USD
View
Price last confirmed 31 days ago
17 more retailers have this diamond
Prices start from €312 EURSave up to €1,080 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
€312 EUR