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Cushion|Lab Grown|IGI

11.57ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG615348253

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG615348253

Diamond specifications and retailer prices

From £1,608 GBP
As of November 2, 2026
Save £14,735 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £16,342 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 11.57ct lab-grown cushion diamond

This 11.57ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG615348253 or 615348253. Listed at 22 retailers as of November 2, 2026, with prices from £1,608 to £16,342, a £14,735 spread on the same certified stone. Brilliant Earth lists it at £16,342. 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

11.57
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615348253
Dimensions12.76 × 12.58 × 7.86 mm
L/W Ratio1.01
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
12.76 mm12.58 mm11.57 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615348253
Side View
Table 62.0%Crown 34.7°Girdle: THK-VTKPavilion 32.8°Culet: NoneDepth 62.5%

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: Nov 2
Current: £16,342 GBP|Low: £1,608 GBP|High: £16,342 GBP|Avg: £4,360 GBP
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
November 3, 2026
Retailer 11£1,608 GBP
Retailer 6£1,932 GBP
Retailer 7£2,002 GBP
Retailer 3£2,124 GBP
Retailer 8£2,729 GBP
Retailer 9£2,827 GBP
Retailer 14£2,862 GBP
Retailer 10£3,023 GBP
Retailer 2£3,101 GBP
Retailer 12£3,708 GBP
Retailer 15£4,479 GBP
Retailer 5£5,345 GBP
Retailer 4£5,645 GBP
Retailer 13£6,570 GBP
Brilliant Earth£16,342 GBP

39 data points across 15 retailers

22 retailers£1,608 GBP to £16,342 GBP

A
Cheapest Retailer
-
£1,608 GBP
A
Retailer 2
-
£1,932 GBP
$2,593 USD
View
Final sale: no returns
Retailer 3
-
£2,002 GBP
$2,686 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
£2,124 GBP
$2,850 USD
View
A
Retailer 5
-
£2,385 GBP
$3,200 USD
View
A
Retailer 6
-
£2,729 GBP
View
A
Retailer 7
-
£2,827 GBP
$3,794 USD
View
A
Retailer 8
-
£2,862 GBP
$3,840 USD
View
A
Retailer 9
-
£3,023 GBP
€3,863 EUR
View
A
Retailer 10
-
£3,101 GBP
ZAR 67,237 ZAR
View
B+
Retailer 11
-
£3,708 GBP
A$7,656 AUD
View
B+
Retailer 12
-
£3,793 GBP
View
Retailer 13
-
£4,479 GBP
$6,010 USD
View
Price last confirmed 12 days ago
Retailer 14
-
£4,970 GBP
$6,669 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
£5,345 GBP
$7,172 USD
View
B+
Retailer 16
-
£5,645 GBP
$7,575 USD
View
B
Retailer 17
-
£6,490 GBP
$8,709 USD
View
B
Retailer 18
-
£6,570 GBP
A$13,563 AUD
View
B
Retailer 19
-
£6,991 GBP
$9,381 USD
View
B
Retailer 20
-
£7,339 GBP
$9,849 USD
View
Retailer 21
-
£16,342 GBP
$21,930 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
16073821A · Nov 2
£16,342 GBP
$21,930 USD
View
21 more retailers have this diamond
Prices start from £1,608 GBPSave up to £14,735 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
11.57ct Cushion
£1,608 GBP