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Cushion|Lab Grown|IGI

1.07ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG837678319

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

Certificate IGI LG837678319

Diamond specifications and retailer prices

From £188 GBP
As of November 6, 2026
Save £978 GBP (84%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,165 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.07ct lab-grown cushion diamond

This 1.07ct 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 LG837678319 or 837678319. Listed at 7 retailers as of November 6, 2026, with prices from £188 to £1,165, a £978 spread on the same certified stone. Do Amore Diamonds lists it at £1,165. 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

1.07
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837678319
Dimensions6.04 × 6.04 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.04 mm6.04 mm1.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837678319
Side View
Table 60.0%Crown 35.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,165 GBP|Low: £188 GBP|High: £1,337 GBP|Avg: £451 GBP|+27.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£188 GBP
Retailer 5£205 GBP
Retailer 2£214 GBP
Retailer 3£297 GBP
Retailer 7£377 GBP
Retailer 4£777 GBP
Do Amore Diamonds£1,165 GBP

27 data points across 7 retailers

7 retailers£188 GBP to £1,165 GBP

A
Cheapest Retailer
-
£188 GBP
B+
Retailer 2
-
£205 GBP
View
A
Retailer 3
-
£214 GBP
View
A
Retailer 4
-
£297 GBP
View
B+
Retailer 5
-
£377 GBP
View
B
Retailer 6
-
£777 GBP
View
Most Expensive
C
Do Amore Diamonds
27-6E9AC5900 · Nov 6
£1,165 GBP
$1,560 USD
View
6 more retailers have this diamond
Prices start from £188 GBPSave up to £978 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
1.07ct Cushion
£188 GBP