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Heart|Lab Grown|IGI

1.00ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG836621580

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836621580

Diamond specifications and retailer prices

From €242 EUR
$270 USD
As of October 30, 2026
Save €1,441 EUR (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,683 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct 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 LG836621580 or 836621580. Listed at 19 retailers as of October 30, 2026, with prices from €242 to €1,683, a €1,441 spread on the same certified stone. Brilliant Earth lists it at €1,683. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836621580
Dimensions6.21 × 6.77 × 4.04 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
6.21 mm6.77 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836621580
Side View
Table 61.0%Crown 39.8°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.7%

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: €1,683 EUR|Low: €242 EUR|High: €1,898 EUR|Avg: €679 EUR|-11.3%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 4€242 EUR
Retailer 6€274 EUR
Retailer 18€280 EUR
Retailer 3€299 EUR
Retailer 7€299 EUR
Retailer 12€317 EUR
Retailer 16€443 EUR
Retailer 13€489 EUR
Retailer 10€497 EUR
Retailer 15€514 EUR
Retailer 9€516 EUR
Retailer 2€521 EUR
Retailer 17€761 EUR
Retailer 11€889 EUR
Retailer 8€961 EUR
Retailer 5€1,007 EUR
Retailer 19€1,189 EUR
Retailer 14€1,205 EUR
Brilliant Earth€1,683 EUR

32 data points across 19 retailers

19 retailers€242 EUR to €1,683 EUR

A
Cheapest Retailer
-
€242 EUR
$270 USD
A
Retailer 2
-
€274 EUR
$306 USD
View
Final sale: no returns
A
Retailer 3
-
€280 EUR
$313 USD
View
A
Retailer 4
-
€299 EUR
$334 USD
View
A
Retailer 5
-
€299 EUR
$334 USD
View
A
Retailer 6
-
€317 EUR
£279 GBP
View
A
Retailer 7
-
€443 EUR
$495 USD
View
A
Retailer 8
-
€489 EUR
View
B+
Retailer 9
-
€497 EUR
$555 USD
View
B+
Retailer 10
-
€514 EUR
ZAR 9,278 ZAR
View
B+
Retailer 11
-
€516 EUR
$576 USD
View
B+
Retailer 12
-
€521 EUR
£458 GBP
View
B+
Retailer 13
-
€761 EUR
$850 USD
View
B
Retailer 14
-
€889 EUR
SGD 1,342 SGD
View
B+
Retailer 15
-
€961 EUR
$1,074 USD
View
B
Retailer 16
-
€1,007 EUR
$1,125 USD
View
B
Retailer 17
-
€1,189 EUR
$1,328 USD
View
B
Retailer 18
-
€1,205 EUR
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
21590127A · Oct 30
€1,683 EUR
$1,880 USD
View
18 more retailers have this diamond
Prices start from €242 EURSave up to €1,441 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
1.00ct Heart
€242 EUR