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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG840620882

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840620882

Diamond specifications and retailer prices

From £199 GBP
$266 USD
As of October 30, 2026
Save £783 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £982 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round 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 LG840620882 or 840620882. Listed at 14 retailers as of October 30, 2026, with prices from £199 to £982, a £783 spread on the same certified stone. Reve Diamonds lists it at £982. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840620882
Dimensions6.46 × 6.48 × 3.93 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.46 mm6.48 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840620882
Side View
Table 56.0%Crown 33.8°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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: £416 GBP|Low: £199 GBP|High: £982 GBP|Avg: £485 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 31, 2026
Retailer 11£199 GBP
Retailer 3£220 GBP
Retailer 10£310 GBP
Retailer 13£356 GBP
Retailer 8£357 GBP
Retailer 9£368 GBP
Retailer 12£379 GBP
Retailer 1£416 GBP
Retailer 4£481 GBP
Retailer 6£575 GBP
Retailer 2£708 GBP
Retailer 5£747 GBP
Retailer 7£925 GBP
Reve Diamonds£982 GBP

6 data points across 14 retailers

14 retailers£199 GBP to £982 GBP

A
Cheapest Retailer
-
£199 GBP
$266 USD
Final sale: no returns
A
Retailer 2
-
£220 GBP
$295 USD
View
A
Retailer 3
-
£310 GBP
$415 USD
View
A
Retailer 4
-
£356 GBP
$477 USD
View
A
Retailer 5
-
£357 GBP
View
A
Retailer 6
-
£368 GBP
€469 EUR
View
A
Retailer 7
-
£379 GBP
ZAR 8,194 ZAR
View
B+
Retailer 8
-
£416 GBP
View
B+
Retailer 9
-
£481 GBP
$644 USD
View
B+
Retailer 10
-
£575 GBP
$771 USD
View
B
Retailer 11
-
£708 GBP
$949 USD
View
B
Retailer 12
-
£747 GBP
$1,001 USD
View
B
Retailer 13
-
£925 GBP
$1,240 USD
View
Most Expensive
B
Reve Diamonds
A0F312E87 · Oct 30
£982 GBP
$1,315 USD
View
13 more retailers have this diamond
Prices start from £199 GBPSave up to £783 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 Round
£199 GBP