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Heart|Lab Grown|IGI

4.31ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG811634649

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811634649

Diamond specifications and retailer prices

From €3,734 EUR
$4,172 USD
As of October 30, 2026
Save €22,062 EUR (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €25,796 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.31ct lab-grown heart diamond

This 4.31ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811634649 or 811634649. Listed at 12 retailers as of October 30, 2026, with prices from €3,734 to €25,796, a €22,062 spread on the same certified stone. Do Amore Diamonds lists it at €25,796. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634649
Dimensions10.97 × 9.88 × 6.61 mm
L/W Ratio1.11
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
10.97 mm9.88 mm4.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634649
Side View
Table 59.0%Crown 36.9°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 60.3%

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: €25,796 EUR|Low: €3,734 EUR|High: €28,902 EUR|Avg: €9,262 EUR|-10.7%
Do Amore Diamonds
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 7€3,734 EUR
Retailer 3€3,930 EUR
Retailer 10€4,044 EUR
Retailer 13€4,395 EUR
Retailer 4€4,430 EUR
Retailer 11€5,661 EUR
Retailer 12€6,000 EUR
Retailer 9€6,735 EUR
Retailer 2€8,249 EUR
Retailer 5€9,436 EUR
Retailer 8€9,996 EUR
Retailer 6€14,304 EUR
Do Amore Diamonds€25,796 EUR

30 data points across 13 retailers

12 retailers€3,734 EUR to €25,796 EUR

A
Cheapest Retailer
-
€3,734 EUR
$4,172 USD
A
Retailer 2
-
€3,930 EUR
$4,391 USD
View
A
Retailer 3
-
€4,044 EUR
$4,518 USD
View
A
Retailer 4
-
€4,395 EUR
$4,910 USD
View
A
Retailer 5
-
€4,430 EUR
$4,949 USD
View
A
Retailer 6
-
€5,661 EUR
$6,324 USD
View
A
Retailer 7
-
€6,000 EUR
$6,703 USD
View
A
Retailer 8
-
€6,735 EUR
$7,524 USD
View
A
Retailer 9
-
€8,249 EUR
View
B+
Retailer 10
-
€9,996 EUR
£8,793 GBP
View
B+
Retailer 11
-
€14,304 EUR
$15,980 USD
View
Most Expensive
B
Do Amore Diamonds
27-9DF32E853 · Oct 31
€25,796 EUR
$28,820 USD
View
11 more retailers have this diamond
Prices start from €3,734 EURSave up to €22,062 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
4.31ct Heart
€3,734 EUR