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Round|Lab Grown|IGI

2.51ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818688390

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818688390

Diamond specifications and retailer prices

From €2,399 EUR
$2,680 USD
As of October 29, 2026
Save €7,302 EUR (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €9,701 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818688390 or 818688390. Listed at 17 retailers as of October 29, 2026, with prices from €2,399 to €9,701, a €7,302 spread on the same certified stone. Taylor and Hart lists it at €9,701. 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
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818688390
Dimensions8.74 × 8.69 × 5.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm8.69 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818688390
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €3,712 EUR|Low: €1,917 EUR|High: €9,701 EUR|Avg: €4,846 EUR|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 1, 2026
Retailer 7€2,399 EUR
Retailer 2€2,685 EUR
Retailer 11€2,783 EUR
Retailer 3€2,844 EUR
Retailer 1€3,712 EUR
Retailer 6€3,974 EUR
Retailer 8€4,083 EUR
Retailer 10€4,331 EUR
Retailer 9€6,990 EUR
Retailer 4€7,179 EUR
Retailer 5€7,490 EUR
Taylor and Hart€9,701 EUR

42 data points across 12 retailers

17 retailers€2,399 EUR to €9,701 EUR

B+
Cheapest Retailer
-
€2,399 EUR
$2,680 USD
Retailer 2
-
€2,399 EUR
$2,680 USD
View
Price last confirmed 37 days ago
Retailer 3
-
€2,610 EUR
$2,916 USD
View
Price last confirmed 38 days ago
B+
Retailer 4
-
€2,685 EUR
$3,000 USD
View
Final sale: no returns
Retailer 5
-
€2,744 EUR
$3,066 USD
View
Price last confirmed 35 days ago
Retailer 6
-
€2,744 EUR
$3,066 USD
View
Price last confirmed 36 days ago
Retailer 7
-
€2,783 EUR
$3,109 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
€2,844 EUR
$3,177 USD
View
B+
Retailer 9
-
€3,712 EUR
£3,265 GBP
View
B+
Retailer 10
-
€3,825 EUR
$4,273 USD
View
B+
Retailer 11
-
€3,974 EUR
$4,440 USD
View
B+
Retailer 12
-
€4,083 EUR
$4,561 USD
View
B
Retailer 13
-
€4,331 EUR
$4,839 USD
View
B
Retailer 14
-
€6,990 EUR
$7,809 USD
View
B
Retailer 15
-
€7,179 EUR
ZAR 129,573 ZAR
View
B
Retailer 16
-
€7,490 EUR
£6,589 GBP
View
Most Expensive
B
Taylor and Hart
RD6C9YJ · Oct 31
€9,701 EUR
$10,838 USD
View
16 more retailers have this diamond
Prices start from €2,399 EURSave up to €7,302 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.

B+
2.51ct Round
€2,399 EUR