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Oval|Lab Grown|IGI

0.91ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG508150155

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG508150155

Diamond specifications and retailer prices

From £93 GBP
$124 USD
As of October 29, 2026
Save £874 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £967 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.91ct lab-grown oval diamond

This 0.91ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508150155 or 508150155. Listed at 13 retailers as of October 26, 2026, with prices from £93 to £967, a £874 spread on the same certified stone. MOH London lists it at £967. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508150155
Dimensions7.91 × 5.59 × 3.22 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
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
7.91 mm5.59 mm0.91 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508150155
Side View
Table 58.0%Crown 31.4°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 57.6%

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: £967 GBP|Low: £57 GBP|High: £1,032 GBP|Avg: £270 GBP|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
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Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 28, 2026
Retailer 6£57 GBP
Retailer 12£93 GBP
Retailer 4£108 GBP
Retailer 5£110 GBP
Retailer 13£123 GBP
Retailer 17£123 GBP
Retailer 10£135 GBP
Retailer 15£194 GBP
Retailer 7£209 GBP
Retailer 14£222 GBP
Retailer 2£238 GBP
Retailer 3£299 GBP
Retailer 16£372 GBP
Retailer 11£393 GBP
Retailer 9£425 GBP
Retailer 8£547 GBP
MOH London£967 GBP

24 data points across 17 retailers

13 retailers£93 GBP to £967 GBP

A
Cheapest Retailer
-
£93 GBP
$124 USD
A
Retailer 2
-
£108 GBP
$144 USD
View
A
Retailer 3
-
£110 GBP
$147 USD
View
Final sale: no returns
A
Retailer 4
-
£123 GBP
$164 USD
View
A
Retailer 5
-
£123 GBP
$164 USD
View
A
Retailer 6
-
£135 GBP
HK$1,400 HKD
View
A
Retailer 7
-
£194 GBP
$259 USD
View
A
Retailer 8
-
£222 GBP
$295 USD
View
A
Retailer 9
-
£238 GBP
View
A
Retailer 10
-
£299 GBP
$398 USD
View
B+
Retailer 11
-
£372 GBP
$495 USD
View
B+
Retailer 12
-
£393 GBP
$523 USD
View
Most Expensive
B
MOH London
LG508150155 · Oct 26
£967 GBP
View
12 more retailers have this diamond
Prices start from £93 GBPSave up to £874 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
0.91ct Oval
£93 GBP