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Heart|Lab Grown|IGI

1.04ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG591351353

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591351353

Diamond specifications and retailer prices

From €329 EUR
$368 USD
As of October 30, 2026
Save €1,148 EUR (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €2,229 EUR at Brilliant Earth · As of October 9, 2026
View at Brilliant Earth

About this 1.04ct lab-grown heart diamond

This 1.04ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG591351353 or 591351353. Listed at 20 retailers as of October 26, 2026, with a 349% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591351353
Dimensions6.24 × 7.04 × 4.07 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
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
6.24 mm7.04 mm1.04 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591351353
Side View
Table 62.0%Crown 33.5°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 57.8%

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: €2,229 EUR|Low: €285 EUR|High: €2,229 EUR|Avg: €705 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 9€285 EUR
Retailer 4€329 EUR
Retailer 7€368 EUR
Retailer 8€368 EUR
Retailer 12€372 EUR
Retailer 17€485 EUR
Retailer 10€488 EUR
Retailer 3€555 EUR
Retailer 14€574 EUR
Retailer 16€619 EUR
Retailer 2€644 EUR
Retailer 15€876 EUR
Retailer 11€1,057 EUR
Retailer 5€1,199 EUR
Retailer 13€1,299 EUR
Retailer 6€1,478 EUR
Brilliant Earth€2,229 EUR

41 data points across 17 retailers

20 retailers€329 EUR to €1,478 EUR

Retailer 1
-
€285 EUR
$318 USD
Price last confirmed 29 days ago
A
Retailer 2
-
€329 EUR
$368 USD
View
Final sale: no returns
Retailer 3
-
€345 EUR
$385 USD
View
Price last confirmed 32 days ago
Retailer 4
-
€368 EUR
$411 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
€368 EUR
$411 USD
View
A
Retailer 6
-
€372 EUR
£327 GBP
View
A
Retailer 7
-
€485 EUR
$542 USD
View
A
Retailer 8
-
€488 EUR
$545 USD
View
B+
Retailer 9
-
€555 EUR
$620 USD
View
B+
Retailer 10
-
€574 EUR
$641 USD
View
B+
Retailer 11
-
€619 EUR
ZAR 11,178 ZAR
View
B+
Retailer 12
-
€644 EUR
£567 GBP
View
B+
Retailer 13
-
€876 EUR
A$1,505 AUD
View
B
Retailer 14
-
€1,057 EUR
$1,181 USD
View
Retailer 15
-
€1,183 EUR
$1,322 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
€1,199 EUR
$1,339 USD
View
B
Retailer 17
-
€1,299 EUR
$1,451 USD
View
Retailer 18
-
€1,312 EUR
A$2,255 AUD
View
Price last confirmed 157 days ago
B
Retailer 19
-
€1,478 EUR
£1,300 GBP
View
Most Expensive
Brilliant Earth
11242224A · Oct 9
€2,229 EUR
$2,490 USD
View
Price last confirmed 22 days ago
19 more retailers have this diamond
Prices start from €329 EURSave up to €1,148 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
1.04ct Heart
€329 EUR