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Cushion|Lab Grown|IGI

10.57ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG662491132

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG662491132

Diamond specifications and retailer prices

From £1,437 GBP
$1,925 USD
As of October 31, 2026
Save £5,407 GBP (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,844 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.57ct lab-grown cushion diamond

This 10.57ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG662491132 or 662491132. Listed at 15 retailers as of October 31, 2026, with prices from £1,437 to £6,844, a £5,407 spread on the same certified stone. Brilliant Earth lists it at £6,844. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

10.57
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662491132
Dimensions14.78 × 11.78 × 7.94 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.78 mm11.78 mm10.57 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662491132
Side View
Table 66.0%Crown 29.9°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 67.4%

Caratlytics Score

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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: Oct 31
Current: £6,844 GBP|Low: £1,174 GBP|High: £7,053 GBP|Avg: £2,925 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 13£1,174 GBP
Retailer 15£1,264 GBP
Retailer 4£1,309 GBP
Retailer 11£1,437 GBP
Retailer 5£1,746 GBP
Retailer 2£1,848 GBP
Retailer 12£2,026 GBP
Retailer 16£2,061 GBP
Retailer 10£2,132 GBP
Retailer 9£2,425 GBP
Retailer 7£3,162 GBP
Retailer 3£3,526 GBP
Retailer 14£3,828 GBP
Retailer 8£4,602 GBP
Retailer 6£4,850 GBP
Brilliant Earth£6,844 GBP

38 data points across 16 retailers

15 retailers£1,437 GBP to £6,844 GBP

Retailer 1
-
£1,174 GBP
Price last confirmed 15 days ago
Retailer 2
-
£1,309 GBP
$1,754 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£1,437 GBP
$1,925 USD
View
A
Retailer 4
-
£1,746 GBP
$2,340 USD
View
A
Retailer 5
-
£1,848 GBP
View
A
Retailer 6
-
£2,026 GBP
ZAR 43,853 ZAR
View
B+
Retailer 7
-
£2,061 GBP
$2,762 USD
View
A
Retailer 8
-
£2,132 GBP
€2,720 EUR
View
A
Retailer 9
-
£2,425 GBP
A$4,998 AUD
View
B+
Retailer 10
-
£3,162 GBP
View
B+
Retailer 11
-
£3,526 GBP
$4,725 USD
View
Retailer 12
-
£3,828 GBP
$5,129 USD
View
Price last confirmed 21 days ago
B
Retailer 13
-
£4,602 GBP
$6,166 USD
View
B+
Retailer 14
-
£4,850 GBP
$6,498 USD
View
Most Expensive
B
Brilliant Earth
12311746A · Oct 31
£6,844 GBP
$9,170 USD
View
14 more retailers have this diamond
Prices start from £1,437 GBPSave up to £5,407 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
10.57ct Cushion
£1,437 GBP