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Heart|Lab Grown|IGI

1.03ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825667231

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825667231

Diamond specifications and retailer prices

From €373 EUR
As of November 3, 2026
Save €2,032 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,405 EUR at Brilliant Earth · As of November 4, 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 very-good cut grade and certified by IGI LG825667231 or 825667231. Listed at 18 retailers as of November 3, 2026, with prices from €373 to €2,405, a €2,032 spread on the same certified stone. Brilliant Earth lists it at €2,405. 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

1.03
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825667231
Dimensions6.22 × 7.04 × 4.00 mm
L/W Ratio1.13
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
6.22 mm7.04 mm1.03 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825667231
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 38.8°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: Nov 3
Current: €2,405 EUR|Low: €373 EUR|High: €2,405 EUR|Avg: €1,023 EUR
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
November 5, 2026
Retailer 5€373 EUR
Retailer 6€391 EUR
Retailer 11€546 EUR
Retailer 3€557 EUR
Retailer 12€581 EUR
Retailer 2€677 EUR
Retailer 9€712 EUR
Retailer 4€944 EUR
Retailer 8€1,022 EUR
Retailer 7€1,261 EUR
Retailer 13€1,555 EUR
Retailer 10€1,613 EUR
Brilliant Earth€2,405 EUR

32 data points across 13 retailers

18 retailers€373 EUR to €2,405 EUR

Retailer 1
-
€371 EUR
Price last confirmed 28 days ago
A
Retailer 2
-
€373 EUR
View
Final sale: no returns
A
Retailer 3
-
€391 EUR
View
Retailer 4
-
€414 EUR
View
Price last confirmed 37 days ago
Retailer 5
-
€461 EUR
View
Price last confirmed 33 days ago
Retailer 6
-
€461 EUR
View
Price last confirmed 24 days ago
B+
Retailer 7
-
€546 EUR
View
B+
Retailer 8
-
€557 EUR
View
B+
Retailer 9
-
€581 EUR
View
B+
Retailer 10
-
€677 EUR
View
B+
Retailer 11
-
€712 EUR
View
B+
Retailer 12
-
€944 EUR
View
B
Retailer 13
-
€1,022 EUR
View
B
Retailer 14
-
€1,261 EUR
View
Retailer 15
-
€1,480 EUR
View
Price last confirmed 31 days ago
B
Retailer 16
-
€1,555 EUR
View
B
Retailer 17
-
€1,613 EUR
View
Most Expensive
B
Brilliant Earth
21584335A · Nov 4
€2,405 EUR
$2,710 USD
View
17 more retailers have this diamond
Prices start from €373 EURSave up to €2,032 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
€373 EUR