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Heart|Lab Grown|IGI

2.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818659727

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818659727

Diamond specifications and retailer prices

From €1,144 EUR
$1,278 USD
As of October 30, 2026
Save €4,799 EUR (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €5,943 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown heart diamond

This 2.51ct lab-grown heart sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659727 or 818659727. Listed at 19 retailers as of October 30, 2026, with prices from €1,144 to €5,943, a €4,799 spread on the same certified stone. Brilliant Earth lists it at €5,943. 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

2.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659727
Dimensions9.15 × 8.49 × 5.47 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
9.15 mm8.49 mm2.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659727
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 59.8%

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: €5,943 EUR|Low: €1,144 EUR|High: €8,530 EUR|Avg: €3,680 EUR|-30.3%
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
Retailer 18
November 1, 2026
Retailer 5€1,144 EUR
Retailer 18€1,245 EUR
Retailer 10€1,295 EUR
Retailer 15€1,327 EUR
Retailer 14€1,481 EUR
Retailer 2€1,855 EUR
Retailer 7€2,102 EUR
Retailer 11€2,173 EUR
Retailer 8€2,319 EUR
Retailer 17€2,349 EUR
Retailer 16€2,487 EUR
Retailer 12€3,424 EUR
Retailer 6€3,643 EUR
Retailer 13€4,287 EUR
Retailer 9€4,560 EUR
Retailer 3€4,658 EUR
Retailer 4€4,949 EUR
Brilliant Earth€5,943 EUR

28 data points across 18 retailers

19 retailers€1,144 EUR to €5,943 EUR

A
Cheapest Retailer
-
€1,144 EUR
$1,278 USD
A
Retailer 2
-
€1,245 EUR
$1,391 USD
View
A
Retailer 3
-
€1,295 EUR
$1,447 USD
View
Final sale: no returns
A
Retailer 4
-
€1,327 EUR
$1,483 USD
View
A
Retailer 5
-
€1,481 EUR
$1,655 USD
View
A
Retailer 6
-
€1,855 EUR
£1,632 GBP
View
Retailer 7
-
€1,890 EUR
$2,111 USD
View
Price last confirmed 19 days ago
A
Retailer 8
-
€2,102 EUR
$2,348 USD
View
A
Retailer 9
-
€2,173 EUR
View
A
Retailer 10
-
€2,319 EUR
$2,591 USD
View
A
Retailer 11
-
€2,349 EUR
$2,624 USD
View
B+
Retailer 12
-
€2,487 EUR
$2,779 USD
View
B+
Retailer 13
-
€3,424 EUR
ZAR 61,798 ZAR
View
B+
Retailer 14
-
€3,643 EUR
$4,070 USD
View
B+
Retailer 15
-
€4,287 EUR
£3,771 GBP
View
B
Retailer 16
-
€4,560 EUR
SGD 6,885 SGD
View
B
Retailer 17
-
€4,658 EUR
$5,204 USD
View
B+
Retailer 18
-
€4,949 EUR
$5,529 USD
View
Most Expensive
B
Brilliant Earth
21421377A · Oct 31
€5,943 EUR
$6,640 USD
View
18 more retailers have this diamond
Prices start from €1,144 EURSave up to €4,799 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
2.51ct Heart
€1,144 EUR