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Radiant|Lab Grown|IGI

1.00ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG816610744

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

Certificate IGI LG816610744

Diamond specifications and retailer prices

From £333 GBP
$444 USD
As of October 28, 2026
Save £444 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £777 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816610744 or 816610744. Listed at 8 retailers as of October 26, 2026, with prices from £333 to £777, a £444 spread on the same certified stone. MOH London lists it at £777. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816610744
Dimensions6.31 × 4.97 × 3.49 mm
L/W Ratio1.27
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
6.31 mm4.97 mm1.00 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816610744
Side View
Table 64.0%Crown 36.1°Girdle: STK-THKPavilion 33.2°Culet: NoneDepth 70.2%

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 28
Current: £777 GBP|Low: £315 GBP|High: £788 GBP|Avg: £483 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£333 GBP
Retailer 3£336 GBP
Retailer 2£356 GBP
Retailer 8£417 GBP
Retailer 6£427 GBP
Retailer 4£660 GBP
Retailer 7£662 GBP
MOH London£777 GBP

41 data points across 8 retailers

8 retailers£333 GBP to £777 GBP

A
Cheapest Retailer
-
£333 GBP
$444 USD
A
Retailer 2
-
£336 GBP
€426 EUR
View
A
Retailer 3
-
£356 GBP
View
B+
Retailer 4
-
£417 GBP
$555 USD
View
B+
Retailer 5
-
£427 GBP
$568 USD
View
B+
Retailer 6
-
£660 GBP
A$1,353 AUD
View
Price last confirmed 24 days ago
B
Retailer 7
-
£662 GBP
$882 USD
View
Most Expensive
B
MOH London
LG816610744 · Oct 26
£777 GBP
View
7 more retailers have this diamond
Prices start from £333 GBPSave up to £444 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
1.00ct Radiant
£333 GBP