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Cushion|Lab Grown|IGI

10.55ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG655435632

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG655435632

Diamond specifications and retailer prices

From £1,458 GBP
$1,953 USD
As of October 31, 2026
Save £3,421 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,878 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 10.55ct lab-grown cushion diamond

This 10.55ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG655435632 or 655435632. Listed at 14 retailers as of October 31, 2026, with prices from £1,458 to £4,878, a £3,421 spread on the same certified stone. Taylor and Hart lists it at £4,878. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

10.55
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655435632
Dimensions15.29 × 11.75 × 7.63 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.29 mm11.75 mm10.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655435632
Side View
Table 64.0%Crown 29.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 64.9%

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: £1,968 GBP|Low: £1,288 GBP|High: £4,878 GBP|Avg: £2,658 GBP|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 13£1,389 GBP
Retailer 4£1,458 GBP
Retailer 8£1,515 GBP
Retailer 2£1,764 GBP
Retailer 1£1,968 GBP
Retailer 11£1,985 GBP
Retailer 7£2,150 GBP
Retailer 9£2,150 GBP
Retailer 6£2,574 GBP
Retailer 5£3,355 GBP
Retailer 12£3,571 GBP
Retailer 10£4,123 GBP
Retailer 3£4,856 GBP
Taylor and Hart£4,878 GBP

38 data points across 14 retailers

14 retailers£1,458 GBP to £4,878 GBP

Retailer 1
-
£1,389 GBP
$1,861 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£1,458 GBP
$1,953 USD
View
Final sale: no returns
A
Retailer 3
-
£1,515 GBP
$2,030 USD
View
A
Retailer 4
-
£1,764 GBP
$2,363 USD
View
A
Retailer 5
-
£1,968 GBP
View
B+
Retailer 6
-
£1,985 GBP
$2,660 USD
View
A
Retailer 7
-
£2,150 GBP
€2,743 EUR
View
A
Retailer 8
-
£2,150 GBP
ZAR 46,543 ZAR
View
A
Retailer 9
-
£2,574 GBP
A$5,305 AUD
View
B+
Retailer 10
-
£3,355 GBP
View
Retailer 11
-
£3,571 GBP
$4,785 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£4,123 GBP
$5,525 USD
View
B+
Retailer 13
-
£4,856 GBP
$6,506 USD
View
Most Expensive
B+
Taylor and Hart
Q6UQHCN · Oct 31
£4,878 GBP
$6,536 USD
View
13 more retailers have this diamond
Prices start from £1,458 GBPSave up to £3,421 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
10.55ct Cushion
£1,458 GBP