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Oval|Lab Grown|IGI

1.00ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG825631579

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG825631579

Diamond specifications and retailer prices

From £164 GBP
$218 USD
As of October 28, 2026
Save £1,276 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,440 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825631579 or 825631579. Listed at 18 retailers as of October 27, 2026, with prices from £164 to £1,440, a £1,276 spread on the same certified stone. Queensmith lists it at £1,440. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825631579
Dimensions8.05 × 5.65 × 3.41 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeNone
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
8.05 mm5.65 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825631579
Side View
Table 62.0%Crown 36.6°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 60.4%

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: £333 GBP|Low: £162 GBP|High: £1,232 GBP|Avg: £483 GBP|+6.0%
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
October 29, 2026
Retailer 12£164 GBP
Retailer 6£314 GBP
Retailer 3£317 GBP
Retailer 11£318 GBP
Retailer 1£333 GBP
Retailer 2£390 GBP
Retailer 10£413 GBP
Retailer 7£446 GBP
Retailer 8£475 GBP
Retailer 13£627 GBP
Retailer 5£758 GBP
Retailer 4£844 GBP
Retailer 9£1,232 GBP

42 data points across 13 retailers

18 retailers£164 GBP to £1,440 GBP

Retailer 1
-
£140 GBP
$186 USD
Price last confirmed 28 days ago
A
Retailer 2
-
£164 GBP
$218 USD
View
Final sale: no returns
Retailer 3
-
£170 GBP
$226 USD
View
Price last confirmed 35 days ago
Retailer 4
-
£178 GBP
$237 USD
View
Price last confirmed 30 days ago
Retailer 5
-
£179 GBP
$239 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
£314 GBP
ZAR 6,745 ZAR
View
A
Retailer 7
-
£318 GBP
$424 USD
View
A
Retailer 8
-
£333 GBP
View
B+
Retailer 9
-
£390 GBP
A$798 AUD
View
B+
Retailer 10
-
£413 GBP
$550 USD
View
B+
Retailer 11
-
£446 GBP
A$913 AUD
View
B+
Retailer 12
-
£475 GBP
$632 USD
View
Retailer 13
-
£580 GBP
$772 USD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
£627 GBP
$835 USD
View
Retailer 15
-
£758 GBP
$1,010 USD
View
Price last confirmed 32 days ago
Retailer 16
-
£844 GBP
View
Price last confirmed 11 days ago
B
Retailer 17
-
£1,232 GBP
$1,640 USD
View
Most Expensive
B
Queensmith
LG825631579 · Oct 27
£1,440 GBP
View
17 more retailers have this diamond
Prices start from £164 GBPSave up to £1,276 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 Oval
£164 GBP