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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG816610535

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816610535

Diamond specifications and retailer prices

From £180 GBP
$241 USD
As of October 30, 2026
Save £748 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £928 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 LG816610535 or 816610535. Listed at 21 retailers as of October 30, 2026, with prices from £180 to £928, a £748 spread on the same certified stone. Reve Diamonds lists it at £928. 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 angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816610535
Dimensions6.46 × 6.41 × 3.94 mm
L/W Ratio1.01
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 mm6.41 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816610535
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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: £366 GBP|Low: £160 GBP|High: £1,052 GBP|Avg: £431 GBP|+1.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
October 31, 2026
Retailer 7£167 GBP
Retailer 18£180 GBP
Retailer 8£207 GBP
Retailer 9£207 GBP
Retailer 15£282 GBP
Retailer 13£323 GBP
Retailer 14£337 GBP
Retailer 16£343 GBP
Retailer 17£349 GBP
Retailer 1£366 GBP
Retailer 2£429 GBP
Retailer 3£430 GBP
Retailer 11£513 GBP
Retailer 10£667 GBP
Retailer 4£681 GBP
Retailer 6£739 GBP
Retailer 5£832 GBP
Retailer 12£925 GBP
Reve Diamonds£928 GBP

36 data points across 19 retailers

21 retailers£180 GBP to £928 GBP

Retailer 1
-
£167 GBP
$224 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£180 GBP
$241 USD
View
Final sale: no returns
Retailer 3
-
£194 GBP
$260 USD
View
Price last confirmed 22 days ago
Retailer 4
-
£207 GBP
$278 USD
View
Price last confirmed 19 days ago
Retailer 5
-
£207 GBP
$278 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
£282 GBP
$378 USD
View
A
Retailer 7
-
£323 GBP
View
A
Retailer 8
-
£337 GBP
€430 EUR
View
A
Retailer 9
-
£343 GBP
ZAR 7,417 ZAR
View
A
Retailer 10
-
£349 GBP
$468 USD
View
A
Retailer 11
-
£366 GBP
View
B+
Retailer 12
-
£429 GBP
$575 USD
View
B+
Retailer 13
-
£430 GBP
$576 USD
View
B+
Retailer 14
-
£513 GBP
$688 USD
View
Retailer 15
-
£667 GBP
$894 USD
View
Price last confirmed 31 days ago
Retailer 16
-
£667 GBP
$894 USD
View
Price last confirmed 34 days ago
B
Retailer 17
-
£681 GBP
$912 USD
View
B+
Retailer 18
-
£739 GBP
$990 USD
View
B
Retailer 19
-
£832 GBP
View
B
Retailer 20
-
£925 GBP
$1,240 USD
View
Most Expensive
B
Reve Diamonds
239E1B2A3 · Oct 30
£928 GBP
$1,243 USD
View
20 more retailers have this diamond
Prices start from £180 GBPSave up to £748 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
£180 GBP