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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG768630808

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

Certificate IGI LG768630808

Diamond specifications and retailer prices

From €584 EUR
HK$5,100 HKD
As of October 31, 2026
Save €2,369 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,954 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 LG768630808 or 768630808. Listed at 14 retailers as of October 31, 2026, with prices from €584 to €2,954, a €2,369 spread on the same certified stone. Brilliant Earth lists it at €2,954. 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 angle40.1°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630808
Dimensions8.44 × 5.78 × 3.73 mm
L/W Ratio1.46
Culet sizePointed
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
8.44 mm5.78 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630808
Side View
Table 62.0%Crown 40.1°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €2,954 EUR|Low: €584 EUR|High: €3,536 EUR|Avg: €1,493 EUR|-16.5%
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
November 1, 2026
Retailer 9€584 EUR
Retailer 4€721 EUR
Retailer 11€721 EUR
Retailer 7€784 EUR
Retailer 6€844 EUR
Retailer 8€876 EUR
Retailer 3€960 EUR
Retailer 13€1,189 EUR
Retailer 12€1,666 EUR
Retailer 5€1,757 EUR
Retailer 2€1,872 EUR
Retailer 10€1,907 EUR
Brilliant Earth€2,954 EUR

43 data points across 13 retailers

14 retailers€584 EUR to €2,954 EUR

A
Cheapest Retailer
-
€584 EUR
HK$5,100 HKD
A
Retailer 2
-
€721 EUR
$805 USD
View
A
Retailer 3
-
€721 EUR
$806 USD
View
A
Retailer 4
-
€784 EUR
View
A
Retailer 5
-
€844 EUR
£743 GBP
View
A
Retailer 6
-
€876 EUR
ZAR 15,810 ZAR
View
B+
Retailer 7
-
€960 EUR
$1,072 USD
View
B+
Retailer 8
-
€1,189 EUR
$1,329 USD
View
B
Retailer 9
-
€1,666 EUR
$1,862 USD
View
B
Retailer 10
-
€1,757 EUR
$1,963 USD
View
B
Retailer 11
-
€1,872 EUR
£1,647 GBP
View
B+
Retailer 12
-
€1,907 EUR
$2,131 USD
View
Retailer 13
-
€2,926 EUR
$3,269 USD
View
Price last confirmed 73 days ago
Most Expensive
B
Brilliant Earth
18919100A · Oct 31
€2,954 EUR
$3,300 USD
View
13 more retailers have this diamond
Prices start from €584 EURSave up to €2,369 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