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Heart|Lab Grown|IGI

1.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663964

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663964

Diamond specifications and retailer prices

From €275 EUR
$307 USD
As of October 30, 2026
Save €1,650 EUR (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,924 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663964 or 846663964. Listed at 12 retailers as of October 30, 2026, with prices from €275 to €1,924, a €1,650 spread on the same certified stone. Brilliant Earth lists it at €1,924. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663964
Dimensions6.36 × 6.95 × 4.20 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
6.36 mm6.95 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663964
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.4%

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: €1,924 EUR|Low: €275 EUR|High: €2,560 EUR|Avg: €781 EUR|-24.8%
Brilliant Earth
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 3€275 EUR
Retailer 5€350 EUR
Retailer 8€476 EUR
Retailer 7€479 EUR
Retailer 4€510 EUR
Retailer 11€554 EUR
Retailer 9€615 EUR
Retailer 10€853 EUR
Retailer 6€1,094 EUR
Retailer 12€1,361 EUR
Retailer 2€1,363 EUR
Brilliant Earth€1,924 EUR

5 data points across 12 retailers

12 retailers€275 EUR to €1,924 EUR

A
Cheapest Retailer
-
€275 EUR
$307 USD
A
Retailer 2
-
€350 EUR
£308 GBP
View
A
Retailer 3
-
€476 EUR
$532 USD
View
A
Retailer 4
-
€479 EUR
$535 USD
View
A
Retailer 5
-
€510 EUR
View
B+
Retailer 6
-
€554 EUR
$619 USD
View
B+
Retailer 7
-
€615 EUR
$687 USD
View
B+
Retailer 8
-
€853 EUR
$953 USD
View
B
Retailer 9
-
€1,094 EUR
$1,222 USD
View
B
Retailer 10
-
€1,361 EUR
$1,520 USD
View
B
Retailer 11
-
€1,363 EUR
£1,199 GBP
View
Most Expensive
B
Brilliant Earth
22319521A · Oct 31
€1,924 EUR
$2,150 USD
View
11 more retailers have this diamond
Prices start from €275 EURSave up to €1,650 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
€275 EUR