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Cushion|Lab Grown|IGI

1.06ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG596345560

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG596345560

Diamond specifications and retailer prices

From £264 GBP
As of November 1, 2026
Save £288 GBP (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £750 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.06ct lab-grown cushion diamond

This 1.06ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG596345560 or 596345560. Listed at 8 retailers as of November 1, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.06
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596345560
Dimensions7.35 × 5.43 × 3.65 mm
L/W Ratio1.35
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
7.35 mm5.43 mm1.06 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596345560
Side View
Table 63.0%Crown 37.6°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £750 GBP|Low: £143 GBP|High: £754 GBP|Avg: £352 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 7£143 GBP
Retailer 3£159 GBP
Retailer 8£264 GBP
Retailer 2£285 GBP
Retailer 6£285 GBP
Retailer 5£397 GBP
Retailer 4£407 GBP
Retailer 9£447 GBP
MOH London£750 GBP

28 data points across 9 retailers

8 retailers£264 GBP to £553 GBP

Retailer 1
-
£159 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£264 GBP
View
A
Retailer 3
-
£285 GBP
View
A
Retailer 4
-
£285 GBP
View
B+
Retailer 5
-
£397 GBP
View
B+
Retailer 6
-
£407 GBP
View
B
Retailer 7
-
£553 GBP
View
Most Expensive
MOH London
LG596345560 · Oct 29
£750 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from £264 GBPSave up to £288 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
1.06ct Cushion
£264 GBP