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Heart|Lab Grown|IGI

1.03ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816624834

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816624834

Diamond specifications and retailer prices

From €346 EUR
$386 USD
As of October 30, 2026
Save €1,794 EUR (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,139 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown heart diamond

This 1.03ct 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 LG816624834 or 816624834. Listed at 19 retailers as of October 30, 2026, with prices from €346 to €2,139, a €1,794 spread on the same certified stone. Brilliant Earth lists it at €2,139. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624834
Dimensions6.95 × 6.42 × 3.95 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
6.95 mm6.42 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624834
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 56.8%

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: €2,139 EUR|Low: €293 EUR|High: €2,426 EUR|Avg: €983 EUR|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 4€346 EUR
Retailer 6€456 EUR
Retailer 7€519 EUR
Retailer 12€542 EUR
Retailer 14€554 EUR
Retailer 9€623 EUR
Retailer 11€660 EUR
Retailer 2€690 EUR
Retailer 3€874 EUR
Retailer 8€945 EUR
Retailer 5€1,273 EUR
Retailer 13€1,486 EUR
Retailer 10€1,510 EUR
Brilliant Earth€2,139 EUR

34 data points across 14 retailers

19 retailers€346 EUR to €2,139 EUR

A
Cheapest Retailer
-
€346 EUR
$386 USD
Final sale: no returns
Retailer 2
-
€368 EUR
$411 USD
View
Price last confirmed 23 days ago
Retailer 3
-
€413 EUR
$461 USD
View
Price last confirmed 33 days ago
Retailer 4
-
€450 EUR
$503 USD
View
Price last confirmed 36 days ago
Retailer 5
-
€456 EUR
$510 USD
View
Price last confirmed 28 days ago
Retailer 6
-
€456 EUR
$510 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
€519 EUR
$580 USD
View
B+
Retailer 8
-
€542 EUR
$605 USD
View
B+
Retailer 9
-
€554 EUR
$619 USD
View
B+
Retailer 10
-
€623 EUR
View
B+
Retailer 11
-
€660 EUR
ZAR 11,915 ZAR
View
B+
Retailer 12
-
€690 EUR
£607 GBP
View
B+
Retailer 13
-
€874 EUR
$976 USD
View
B+
Retailer 14
-
€945 EUR
$1,056 USD
View
B
Retailer 15
-
€1,273 EUR
$1,422 USD
View
Retailer 16
-
€1,467 EUR
$1,639 USD
View
Price last confirmed 31 days ago
B
Retailer 17
-
€1,486 EUR
$1,660 USD
View
B
Retailer 18
-
€1,510 EUR
£1,328 GBP
View
Most Expensive
B
Brilliant Earth
21019228A · Oct 30
€2,139 EUR
$2,390 USD
View
18 more retailers have this diamond
Prices start from €346 EURSave up to €1,794 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
1.03ct Heart
€346 EUR