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Oval|Lab Grown|IGI

1.00ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG839601899

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839601899

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 LG839601899 or 839601899. 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 angle33.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839601899
Dimensions8.17 × 5.56 × 3.51 mm
L/W Ratio1.47
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
8.17 mm5.56 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839601899
Side View
Table 56.0%Crown 33.8°Girdle: THN-STKPavilion 41.1°Culet: NoneDepth 63.1%

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 28
Current: £1,440 GBP|Low: £161 GBP|High: £1,440 GBP|Avg: £525 GBP
Queensmith
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
October 29, 2026
Retailer 4£164 GBP
Retailer 5£182 GBP
Retailer 14£182 GBP
Retailer 10£194 GBP
Retailer 11£313 GBP
Retailer 7£317 GBP
Retailer 3£318 GBP
Retailer 2£332 GBP
Retailer 16£413 GBP
Retailer 12£445 GBP
Retailer 15£470 GBP
Retailer 6£626 GBP
Retailer 13£746 GBP
Retailer 9£856 GBP
Retailer 8£1,111 GBP
Queensmith£1,440 GBP

30 data points across 16 retailers

18 retailers£164 GBP to £1,440 GBP

Retailer 1
-
£139 GBP
$185 USD
Price last confirmed 28 days ago
A
Retailer 2
-
£164 GBP
$218 USD
View
Final sale: no returns
Retailer 3
-
£179 GBP
$239 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£179 GBP
$239 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£182 GBP
$243 USD
View
A
Retailer 6
-
£182 GBP
$243 USD
View
A
Retailer 7
-
£194 GBP
View
A
Retailer 8
-
£313 GBP
ZAR 6,731 ZAR
View
A
Retailer 9
-
£318 GBP
$424 USD
View
A
Retailer 10
-
£332 GBP
View
B+
Retailer 11
-
£413 GBP
$550 USD
View
B+
Retailer 12
-
£445 GBP
A$911 AUD
View
B+
Retailer 13
-
£470 GBP
$626 USD
View
B+
Retailer 14
-
£626 GBP
$834 USD
View
B+
Retailer 15
-
£746 GBP
A$1,529 AUD
View
B
Retailer 16
-
£856 GBP
View
B
Retailer 17
-
£1,111 GBP
$1,480 USD
View
Most Expensive
B
Queensmith
LG839601899 · 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