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Cushion|Lab Grown|IGI

10.62ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG586376400

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG586376400

Diamond specifications and retailer prices

From £1,053 GBP
As of November 1, 2026
Save £4,542 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,595 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 10.62ct lab-grown cushion diamond

This 10.62ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG586376400 or 586376400. Listed at 9 retailers as of October 31, 2026, with prices from £1,053 to £5,595, a £4,542 spread on the same certified stone. Adiamor lists it at £5,595. 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

10.62
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG586376400
Dimensions12.88 × 12.87 × 8.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.88 mm12.87 mm10.62 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG586376400
Side View
Table 64.0%Crown 36.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 65.4%

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 1
Current: £5,595 GBP|Low: £1,053 GBP|High: £10,455 GBP|Avg: £3,740 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5£1,053 GBP
Retailer 8£1,310 GBP
Retailer 10£1,395 GBP
Retailer 9£1,582 GBP
Retailer 6£1,665 GBP
Retailer 4£1,865 GBP
Retailer 7£1,896 GBP
Retailer 2£4,198 GBP
Adiamor£5,595 GBP
Retailer 11£6,971 GBP
Retailer 3£10,455 GBP

5 data points across 11 retailers

9 retailers£1,053 GBP to £5,595 GBP

A
Cheapest Retailer
-
£1,053 GBP
A
Retailer 2
-
£1,310 GBP
$1,755 USD
View
A
Retailer 3
-
£1,395 GBP
HK$14,600 HKD
View
A
Retailer 4
-
£1,582 GBP
$2,120 USD
View
A
Retailer 5
-
£1,665 GBP
View
B+
Retailer 6
-
£1,865 GBP
$2,499 USD
View
A
Retailer 7
-
£1,896 GBP
€2,419 EUR
View
B
Retailer 8
-
£4,198 GBP
$5,625 USD
View
Most Expensive
B
Adiamor
D-82833908 · Oct 31
£5,595 GBP
$7,497 USD
View
8 more retailers have this diamond
Prices start from £1,053 GBPSave up to £4,542 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
10.62ct Cushion
£1,053 GBP