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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG800679081

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG800679081

Diamond specifications and retailer prices

From €584 EUR
HK$5,100 HKD
As of October 31, 2026
Save €1,985 EUR (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,569 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800679081 or 800679081. Listed at 10 retailers as of October 31, 2026, with prices from €584 to €2,569, a €1,985 spread on the same certified stone. Brilliant Earth lists it at €2,569. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679081
Dimensions8.12 × 5.86 × 3.72 mm
L/W Ratio1.39
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
8.12 mm5.86 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679081
Side View
Table 59.0%Crown 45.7°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 63.5%

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 31
Current: €2,569 EUR|Low: €584 EUR|High: €3,536 EUR|Avg: €1,605 EUR|-27.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5€584 EUR
Retailer 9€721 EUR
Retailer 2€784 EUR
Retailer 3€844 EUR
Retailer 8€960 EUR
Retailer 7€1,189 EUR
Retailer 6€1,666 EUR
Retailer 10€1,757 EUR
Retailer 4€1,875 EUR
Brilliant Earth€2,569 EUR

42 data points across 10 retailers

10 retailers€584 EUR to €2,569 EUR

A
Cheapest Retailer
-
€584 EUR
HK$5,100 HKD
A
Retailer 2
-
€721 EUR
$805 USD
View
A
Retailer 3
-
€784 EUR
View
A
Retailer 4
-
€844 EUR
£743 GBP
View
B+
Retailer 5
-
€960 EUR
$1,072 USD
View
B+
Retailer 6
-
€1,189 EUR
$1,329 USD
View
B
Retailer 7
-
€1,666 EUR
$1,862 USD
View
B
Retailer 8
-
€1,757 EUR
$1,963 USD
View
B
Retailer 9
-
€1,875 EUR
£1,649 GBP
View
Most Expensive
B
Brilliant Earth
20788319A · Oct 31
€2,569 EUR
$2,870 USD
View
9 more retailers have this diamond
Prices start from €584 EURSave up to €1,985 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
1.51ct Radiant
€584 EUR