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Cushion|Lab Grown|IGI

11.53ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG603337552

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG603337552

Diamond specifications and retailer prices

From £2,059 GBP
$2,759 USD
As of November 1, 2026
Save £5,386 GBP (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,446 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.53ct lab-grown cushion diamond

This 11.53ct 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 LG603337552 or 603337552. Listed at 16 retailers as of October 31, 2026, with prices from £2,059 to £7,446, a £5,386 spread on the same certified stone. Taylor and Hart lists it at £7,446. 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

11.53
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle28.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603337552
Dimensions15.21 × 10.90 × 7.62 mm
L/W Ratio1.40
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
15.21 mm10.90 mm11.53 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603337552
Side View
Table 62.0%Crown 36.2°Girdle: THK-ETKPavilion 28.8°Culet: NoneDepth 69.9%

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: £2,856 GBP|Low: £2,059 GBP|High: £5,969 GBP|Avg: £3,211 GBP|-1.0%
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
November 2, 2026
Retailer 4£2,059 GBP
Retailer 2£2,134 GBP
Retailer 11£2,254 GBP
Retailer 3£2,504 GBP
Retailer 1£2,856 GBP
Retailer 10£2,914 GBP
Retailer 8£3,303 GBP
Retailer 13£3,325 GBP
Retailer 7£3,381 GBP
Retailer 6£3,953 GBP
Retailer 5£4,049 GBP
Retailer 12£5,696 GBP
Retailer 9£5,930 GBP

43 data points across 13 retailers

16 retailers£2,059 GBP to £7,446 GBP

A
Cheapest Retailer
-
£2,059 GBP
$2,759 USD
Final sale: no returns
Retailer 2
-
£2,134 GBP
$2,859 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
£2,254 GBP
$3,020 USD
View
A
Retailer 4
-
£2,504 GBP
$3,355 USD
View
A
Retailer 5
-
£2,856 GBP
View
A
Retailer 6
-
£2,914 GBP
$3,904 USD
View
A
Retailer 7
-
£3,303 GBP
ZAR 71,490 ZAR
View
A
Retailer 8
-
£3,325 GBP
$4,455 USD
View
A
Retailer 9
-
£3,381 GBP
€4,315 EUR
View
B+
Retailer 10
-
£3,953 GBP
A$8,148 AUD
View
B+
Retailer 11
-
£4,049 GBP
View
Retailer 12
-
£4,961 GBP
$6,647 USD
View
Price last confirmed 53 days ago
B
Retailer 13
-
£5,696 GBP
$7,632 USD
View
B
Retailer 14
-
£5,930 GBP
$7,946 USD
View
B
Retailer 15
-
£5,991 GBP
$8,027 USD
View
Most Expensive
B
Taylor and Hart
RWKLTPS · Oct 31
£7,446 GBP
$9,976 USD
View
15 more retailers have this diamond
Prices start from £2,059 GBPSave up to £5,386 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
11.53ct Cushion
£2,059 GBP