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Radiant|Lab Grown|IGI

1.01ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818667874

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

Certificate IGI LG818667874

Diamond specifications and retailer prices

From £310 GBP
$415 USD
As of October 30, 2026
Save £1,064 GBP (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,418 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818667874 or 818667874. Listed at 7 retailers as of October 30, 2026, with a 343% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818667874
Dimensions7.07 × 4.99 × 3.30 mm
L/W Ratio1.42
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
7.07 mm4.99 mm1.01 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818667874
Side View
Table 61.0%Crown 39.4°Girdle: MediumPavilion 33.7°Culet: NoneDepth 66.1%

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 30
Current: £1,418 GBP|Low: £177 GBP|High: £1,642 GBP|Avg: £732 GBP|-0.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 3£177 GBP
Retailer 13£276 GBP
Retailer 9£310 GBP
Retailer 4£444 GBP
Retailer 12£456 GBP
Retailer 11£475 GBP
Retailer 8£571 GBP
Retailer 10£678 GBP
Retailer 6£787 GBP
Retailer 5£922 GBP
Retailer 2£1,075 GBP
Retailer 7£1,373 GBP
Rare Carat£1,418 GBP

15 data points across 13 retailers

7 retailers£310 GBP to £1,373 GBP

A
Cheapest Retailer
-
£310 GBP
$415 USD
B+
Retailer 2
-
£571 GBP
$765 USD
View
B+
Retailer 3
-
£678 GBP
$909 USD
View
B+
Retailer 4
-
£787 GBP
View
B
Retailer 5
-
£1,075 GBP
$1,440 USD
View
B
Retailer 6
-
£1,373 GBP
$1,840 USD
View
Most Expensive
Rare Carat
PD-223895 · Oct 21
£1,418 GBP
$1,900 USD
View
Price last confirmed 9 days ago
6 more retailers have this diamond
Prices start from £310 GBPSave up to £1,064 GBP

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
1.01ct Radiant
£310 GBP