CaratHunter
Plans
Cushion|Lab Grown|IGI

1.01ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG809605593

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

Certificate IGI LG809605593

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £844 GBP (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,009 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.01ct lab-grown cushion diamond

This 1.01ct 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 LG809605593 or 809605593. Listed at 6 retailers as of November 4, 2026, with prices from £164 to £1,009, a £844 spread on the same certified stone. MOH London lists it at £1,009. 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809605593
Dimensions5.64 × 5.46 × 3.79 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.64 mm5.46 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG809605593
Side View
Table 62.0%Crown 39°Girdle: THK-VTKPavilion 35.1°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,009 GBP|Low: £164 GBP|High: £1,023 GBP|Avg: £412 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£164 GBP
Retailer 2£233 GBP
Retailer 6£241 GBP
Retailer 5£362 GBP
Retailer 3£456 GBP
MOH London£1,009 GBP

21 data points across 6 retailers

6 retailers£164 GBP to £1,009 GBP

B+
Cheapest Retailer
-
£164 GBP
A
Retailer 2
-
£233 GBP
View
A
Retailer 3
-
£241 GBP
View
B+
Retailer 4
-
£362 GBP
View
B+
Retailer 5
-
£456 GBP
View
Most Expensive
B
MOH London
LG809605593 · Nov 5
£1,009 GBP
View
5 more retailers have this diamond
Prices start from £164 GBPSave up to £844 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
1.01ct Cushion
£164 GBP