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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG560245998

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG560245998

Diamond specifications and retailer prices

From £100 GBP
As of November 6, 2026
Save £930 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,030 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct 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 LG560245998 or 560245998. Listed at 12 retailers as of November 5, 2026, with prices from £100 to £1,030, a £930 spread on the same certified stone. MOH London lists it at £1,030. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle29.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560245998
Dimensions6.40 × 5.27 × 3.32 mm
L/W Ratio1.21
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
6.40 mm5.27 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560245998
Side View
Table 63.5%Crown 40.6°Girdle: MED-STKPavilion 29.2°Culet: NoneDepth 63.0%

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 6
Current: £1,030 GBP|Low: £100 GBP|High: £1,039 GBP|Avg: £376 GBP|+45.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£100 GBP
Retailer 4£137 GBP
Retailer 11£154 GBP
Retailer 12£179 GBP
Retailer 2£206 GBP
Retailer 6£235 GBP
Retailer 8£297 GBP
Retailer 5£312 GBP
Retailer 3£528 GBP
Retailer 10£706 GBP
Retailer 9£1,016 GBP
MOH London£1,030 GBP

40 data points across 12 retailers

12 retailers£100 GBP to £1,030 GBP

A
Cheapest Retailer
-
£100 GBP
Final sale: no returns
B+
Retailer 2
-
£154 GBP
View
A
Retailer 3
-
£179 GBP
View
A
Retailer 4
-
£206 GBP
View
Retailer 5
-
£229 GBP
View
Price last confirmed 64 days ago
A
Retailer 6
-
£235 GBP
View
B+
Retailer 7
-
£297 GBP
View
B+
Retailer 8
-
£312 GBP
View
B
Retailer 9
-
£528 GBP
View
B
Retailer 10
-
£706 GBP
View
B
Retailer 11
-
£1,016 GBP
View
Most Expensive
B
MOH London
LG560245998 · Nov 5
£1,030 GBP
View
11 more retailers have this diamond
Prices start from £100 GBPSave up to £930 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
1.00ct Cushion
£100 GBP