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Heart|Lab Grown|IGI

2.51ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG816630834

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816630834

Diamond specifications and retailer prices

From €1,177 EUR
$1,315 USD
As of October 30, 2026
Save €3,618 EUR (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,795 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 LG816630834 or 816630834. Listed at 17 retailers as of October 30, 2026, with prices from €1,177 to €4,795, a €3,618 spread on the same certified stone. Taylor and Hart lists it at €4,795. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630834
Dimensions8.39 × 9.50 × 5.46 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
8.39 mm9.50 mm2.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630834
Side View
Table 58.0%Crown 33.8°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 57.5%

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: €4,387 EUR|Low: €1,177 EUR|High: €6,599 EUR|Avg: €2,951 EUR|-29.3%
Retailer 1
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
Taylor and Hart
November 1, 2026
Retailer 5€1,177 EUR
Retailer 9€1,281 EUR
Retailer 3€1,317 EUR
Retailer 13€1,365 EUR
Retailer 8€1,517 EUR
Retailer 2€1,617 EUR
Retailer 7€1,909 EUR
Retailer 12€2,160 EUR
Retailer 11€2,360 EUR
Retailer 10€2,545 EUR
Retailer 6€2,559 EUR
Retailer 4€3,918 EUR
Retailer 14€4,253 EUR
Retailer 1€4,387 EUR
Taylor and Hart€4,795 EUR

45 data points across 15 retailers

17 retailers€1,177 EUR to €4,795 EUR

A
Cheapest Retailer
-
€1,177 EUR
$1,315 USD
A
Retailer 2
-
€1,281 EUR
$1,431 USD
View
A
Retailer 3
-
€1,317 EUR
$1,471 USD
View
Final sale: no returns
A
Retailer 4
-
€1,365 EUR
$1,525 USD
View
A
Retailer 5
-
€1,517 EUR
$1,695 USD
View
A
Retailer 6
-
€1,617 EUR
$1,807 USD
View
A
Retailer 7
-
€1,909 EUR
£1,679 GBP
View
A
Retailer 8
-
€2,160 EUR
$2,413 USD
View
Retailer 9
-
€2,287 EUR
$2,555 USD
View
Price last confirmed 21 days ago
A
Retailer 10
-
€2,360 EUR
$2,637 USD
View
B+
Retailer 11
-
€2,545 EUR
$2,843 USD
View
B+
Retailer 12
-
€2,559 EUR
$2,859 USD
View
B+
Retailer 13
-
€3,409 EUR
$3,808 USD
View
B+
Retailer 14
-
€3,918 EUR
$4,377 USD
View
B
Retailer 15
-
€4,253 EUR
$4,751 USD
View
B
Retailer 16
-
€4,387 EUR
£3,859 GBP
View
Most Expensive
B
Taylor and Hart
IPMAYPI · Oct 31
€4,795 EUR
$5,357 USD
View
16 more retailers have this diamond
Prices start from €1,177 EURSave up to €3,618 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
€1,177 EUR