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Oval|Lab Grown|IGI

1.18ct H VS1 Oval Lab Grown Diamond

GD • H/VS1 • IGI LG611391338

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG611391338

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of November 1, 2026
Save £756 GBP (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,012 GBP at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.18ct lab-grown oval diamond

This 1.18ct lab-grown oval sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG611391338 or 611391338. Listed at 19 retailers as of October 28, 2026, with prices from £255 to £1,012, a £756 spread on the same certified stone. Reve Diamonds lists it at £1,012. 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

1.18
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611391338
Dimensions8.59 × 5.84 × 3.65 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.59 mm5.84 mm1.18 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611391338
Side View
Table 61.0%Crown 35.6°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

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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: Nov 1
Current: £345 GBP|Low: £209 GBP|High: £1,012 GBP|Avg: £533 GBP
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
Reve Diamonds
October 31, 2026
Retailer 4£209 GBP
Retailer 16£232 GBP
Retailer 3£255 GBP
Retailer 10£292 GBP
Retailer 2£340 GBP
Retailer 1£345 GBP
Retailer 12£351 GBP
Retailer 14£396 GBP
Retailer 8£409 GBP
Retailer 5£419 GBP
Retailer 11£565 GBP
Retailer 13£713 GBP
Retailer 6£784 GBP
Retailer 15£791 GBP
Retailer 7£910 GBP
Retailer 9£935 GBP
Reve Diamonds£1,012 GBP

31 data points across 17 retailers

19 retailers£255 GBP to £1,012 GBP

Retailer 1
-
£180 GBP
$241 USD
Price last confirmed 31 days ago
Retailer 2
-
£187 GBP
$251 USD
View
Price last confirmed 39 days ago
Retailer 3
-
£229 GBP
$307 USD
View
Price last confirmed 41 days ago
Retailer 4
-
£229 GBP
$307 USD
View
Price last confirmed 33 days ago
B
Retailer 5
-
£255 GBP
$342 USD
View
A
Retailer 6
-
£292 GBP
View
B+
Retailer 7
-
£340 GBP
$455 USD
View
B+
Retailer 8
-
£345 GBP
€440 EUR
View
B+
Retailer 9
-
£351 GBP
$470 USD
View
B+
Retailer 10
-
£379 GBP
View
Retailer 11
-
£396 GBP
ZAR 8,561 ZAR
View
Price last confirmed 19 days ago
B+
Retailer 12
-
£419 GBP
$561 USD
View
B
Retailer 13
-
£565 GBP
A$1,164 AUD
View
Retailer 14
-
£713 GBP
$955 USD
View
Price last confirmed 7 days ago
Retailer 15
-
£746 GBP
$999 USD
View
Price last confirmed 33 days ago
C
Retailer 16
-
£784 GBP
$1,051 USD
View
C
Retailer 17
-
£791 GBP
$1,060 USD
View
B
Retailer 18
-
£935 GBP
View
Most Expensive
C
Reve Diamonds
D91DBD326 · Oct 28
£1,012 GBP
$1,355 USD
View
18 more retailers have this diamond
Prices start from £255 GBPSave up to £756 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
1.18ct Oval
£255 GBP