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Cushion|Lab Grown|IGI

0.91ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG766699872

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG766699872

Diamond specifications and retailer prices

From £103 GBP
$137 USD
As of October 28, 2026
Save £854 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £957 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.91ct lab-grown cushion diamond

This 0.91ct lab-grown cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG766699872 or 766699872. Listed at 12 retailers as of October 26, 2026, with prices from £103 to £957, a £854 spread on the same certified stone. MOH London lists it at £957. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766699872
Dimensions5.78 × 5.72 × 3.80 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.78 mm5.72 mm0.91 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG766699872
Side View
Table 63.0%Crown 33.3°Girdle: MED-THKPavilion 41.1°Culet: NoneDepth 66.4%

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: £957 GBP|Low: £103 GBP|High: £966 GBP|Avg: £340 GBP|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 7£103 GBP
Retailer 10£122 GBP
Retailer 6£152 GBP
Retailer 3£158 GBP
Retailer 4£226 GBP
Retailer 5£235 GBP
Retailer 2£236 GBP
Retailer 11£297 GBP
Retailer 9£586 GBP
Retailer 8£711 GBP
MOH London£957 GBP

41 data points across 11 retailers

12 retailers£103 GBP to £957 GBP

A
Cheapest Retailer
-
£103 GBP
$137 USD
Final sale: no returns
A
Retailer 2
-
£122 GBP
$162 USD
View
A
Retailer 3
-
£152 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£158 GBP
$210 USD
View
A
Retailer 5
-
£226 GBP
€286 EUR
View
A
Retailer 6
-
£235 GBP
View
A
Retailer 7
-
£236 GBP
View
A
Retailer 8
-
£297 GBP
$396 USD
View
B+
Retailer 9
-
£410 GBP
$546 USD
View
B
Retailer 10
-
£586 GBP
$780 USD
View
B
Retailer 11
-
£711 GBP
$947 USD
View
Most Expensive
B
MOH London
LG766699872 · Oct 26
£957 GBP
View
11 more retailers have this diamond
Prices start from £103 GBPSave up to £854 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 Cushion
£103 GBP