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Cushion|Lab Grown|IGI

1.02ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG630430335

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG630430335

Diamond specifications and retailer prices

From £201 GBP
As of November 5, 2026
Save £173 GBP (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,015 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.02ct lab-grown cushion diamond

This 1.02ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG630430335 or 630430335. Listed at 9 retailers as of November 4, 2026, with a 86% 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

1.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.7°
Pavilion angle43.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630430335
Dimensions6.98 × 5.38 × 3.59 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Top View
6.98 mm5.38 mm1.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630430335
Side View
Table 66.0%Crown 28.7°Girdle: MED-THKPavilion 43.2°Culet: NoneDepth 66.7%

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: Nov 5
Current: £1,015 GBP|Low: £122 GBP|High: £1,027 GBP|Avg: £333 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 7£122 GBP
Retailer 6£158 GBP
Retailer 2£201 GBP
Retailer 10£217 GBP
Retailer 3£229 GBP
Retailer 5£230 GBP
Retailer 8£230 GBP
Retailer 9£362 GBP
Retailer 4£374 GBP
MOH London£1,015 GBP

35 data points across 10 retailers

9 retailers£201 GBP to £374 GBP

Retailer 1
-
£122 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£201 GBP
View
A
Retailer 3
-
£217 GBP
View
A
Retailer 4
-
£229 GBP
View
A
Retailer 5
-
£230 GBP
View
A
Retailer 6
-
£230 GBP
View
B+
Retailer 7
-
£362 GBP
View
B+
Retailer 8
-
£374 GBP
View
Most Expensive
MOH London
630430335 · Oct 25
£1,015 GBP
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from £201 GBPSave up to £173 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
1.02ct Cushion
£201 GBP