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Radiant|Lab Grown|IGI

1.05ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG816615690

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

Certificate IGI LG816615690

Diamond specifications and retailer prices

From £216 GBP
As of October 29, 2026
Save £1,436 GBP (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,652 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown radiant diamond

This 1.05ct 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 LG816615690 or 816615690. Listed at 8 retailers as of October 29, 2026, with prices from £216 to £1,652, a £1,436 spread on the same certified stone. Brilliant Earth lists it at £1,652. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615690
Dimensions6.96 × 5.10 × 3.38 mm
L/W Ratio1.36
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
6.96 mm5.10 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615690
Side View
Table 64.0%Crown 24.7°Girdle: Slightly ThickPavilion 35.4°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
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 29
Current: £1,652 GBP|Low: £185 GBP|High: £1,720 GBP|Avg: £744 GBP|-3.9%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 29, 2026
Retailer 5£185 GBP
Retailer 2£216 GBP
Retailer 10£320 GBP
Retailer 3£436 GBP
Retailer 15£475 GBP
Retailer 6£478 GBP
Retailer 14£496 GBP
Retailer 9£594 GBP
Retailer 13£700 GBP
Retailer 4£808 GBP
Retailer 11£815 GBP
Retailer 7£959 GBP
Retailer 8£1,427 GBP
Retailer 12£1,483 GBP
Brilliant Earth£1,652 GBP

19 data points across 15 retailers

8 retailers£216 GBP to £1,652 GBP

A
Cheapest Retailer
-
£216 GBP
A
Retailer 2
-
£320 GBP
$426 USD
View
B+
Retailer 3
-
£594 GBP
$791 USD
View
B+
Retailer 4
-
£700 GBP
$932 USD
View
B+
Retailer 5
-
£815 GBP
View
B
Retailer 6
-
£1,427 GBP
$1,900 USD
View
B
Retailer 7
-
£1,483 GBP
$1,975 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21730922Y · Oct 29
£1,652 GBP
$2,200 USD
View
7 more retailers have this diamond
Prices start from £216 GBPSave up to £1,436 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
1.05ct Radiant
£216 GBP