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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 €376 EUR
$420 USD
As of October 30, 2026
Save €2,050 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,426 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 very-good cut grade and certified by IGI LG825667231 or 825667231. Listed at 18 retailers as of October 30, 2026, with prices from €376 to €2,426, a €2,050 spread on the same certified stone. Brilliant Earth lists it at €2,426. 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
Color
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

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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: €2,426 EUR|Low: €376 EUR|High: €2,426 EUR|Avg: €1,040 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
October 31, 2026
Retailer 4€376 EUR
Retailer 8€430 EUR
Retailer 6€550 EUR
Retailer 13€562 EUR
Retailer 11€586 EUR
Retailer 10€715 EUR
Retailer 2€746 EUR
Retailer 3€953 EUR
Retailer 7€1,168 EUR
Retailer 5€1,373 EUR
Retailer 12€1,568 EUR
Retailer 9€1,635 EUR
Brilliant Earth€2,426 EUR

27 data points across 13 retailers

18 retailers€376 EUR to €2,426 EUR

Retailer 1
-
€374 EUR
$418 USD
Price last confirmed 23 days ago
A
Retailer 2
-
€376 EUR
$420 USD
View
Final sale: no returns
Retailer 3
-
€418 EUR
$467 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
€430 EUR
£378 GBP
View
Retailer 5
-
€465 EUR
$519 USD
View
Price last confirmed 28 days ago
Retailer 6
-
€465 EUR
$519 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€550 EUR
$615 USD
View
B+
Retailer 8
-
€562 EUR
$628 USD
View
B+
Retailer 9
-
€586 EUR
$655 USD
View
B+
Retailer 10
-
€715 EUR
ZAR 12,911 ZAR
View
B+
Retailer 11
-
€746 EUR
£656 GBP
View
B+
Retailer 12
-
€953 EUR
$1,065 USD
View
B
Retailer 13
-
€1,168 EUR
$1,305 USD
View
B
Retailer 14
-
€1,373 EUR
$1,534 USD
View
Retailer 15
-
€1,493 EUR
$1,668 USD
View
Price last confirmed 27 days ago
B
Retailer 16
-
€1,568 EUR
$1,752 USD
View
B
Retailer 17
-
€1,635 EUR
£1,438 GBP
View
Most Expensive
B
Brilliant Earth
21584335A · Oct 30
€2,426 EUR
$2,710 USD
View
17 more retailers have this diamond
Prices start from €376 EURSave up to €2,050 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
€376 EUR