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Oval|Lab Grown|IGI

1.55ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG818664311

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818664311

Diamond specifications and retailer prices

From £172 GBP
$230 USD
As of October 29, 2026
Save £684 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £856 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818664311 or 818664311. Listed at 16 retailers as of October 26, 2026, with prices from £172 to £856, a £684 spread on the same certified stone. MOH London lists it at £856. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818664311
Dimensions9.65 × 6.44 × 3.97 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.65 mm6.44 mm1.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818664311
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

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: Oct 29
Current: £856 GBP|Low: £162 GBP|High: £856 GBP|Avg: £470 GBP|+3.8%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
October 31, 2026
Retailer 7£172 GBP
Retailer 4£193 GBP
Retailer 8£199 GBP
Retailer 13£213 GBP
Retailer 14£213 GBP
Retailer 10£361 GBP
Retailer 11£366 GBP
Retailer 16£390 GBP
Retailer 12£498 GBP
Retailer 2£566 GBP
Retailer 15£686 GBP
Retailer 5£690 GBP
Retailer 6£713 GBP
Retailer 3£725 GBP
Retailer 9£836 GBP
MOH London£856 GBP

38 data points across 16 retailers

16 retailers£172 GBP to £856 GBP

A
Cheapest Retailer
-
£172 GBP
$230 USD
A
Retailer 2
-
£193 GBP
$258 USD
View
Final sale: no returns
A
Retailer 3
-
£199 GBP
$267 USD
View
A
Retailer 4
-
£213 GBP
$286 USD
View
A
Retailer 5
-
£213 GBP
$286 USD
View
A
Retailer 6
-
£361 GBP
$484 USD
View
A
Retailer 7
-
£366 GBP
ZAR 7,931 ZAR
View
A
Retailer 8
-
£390 GBP
$522 USD
View
B+
Retailer 9
-
£498 GBP
A$1,027 AUD
View
B
Retailer 10
-
£566 GBP
$759 USD
View
B+
Retailer 11
-
£686 GBP
$919 USD
View
B+
Retailer 12
-
£690 GBP
SGD 1,249 SGD
View
Retailer 13
-
£713 GBP
$955 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£725 GBP
$971 USD
View
B
Retailer 15
-
£836 GBP
$1,120 USD
View
Most Expensive
B
MOH London
LG818664311 · Oct 26
£856 GBP
View
15 more retailers have this diamond
Prices start from £172 GBPSave up to £684 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
1.55ct Oval
£172 GBP