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Cushion|Lab Grown|IGI

12.06ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG831686051

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831686051

Diamond specifications and retailer prices

From £1,940 GBP
As of November 2, 2026
Save £6,479 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,419 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.06ct lab-grown cushion diamond

This 12.06ct 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 LG831686051 or 831686051. Listed at 15 retailers as of October 31, 2026, with prices from £1,940 to £8,419, a £6,479 spread on the same certified stone. Taylor and Hart lists it at £8,419. 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

12.06
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831686051
Dimensions17.59 × 11.00 × 7.40 mm
L/W Ratio1.60
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.59 mm11.00 mm12.06 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831686051
Side View
Table 67.0%Crown 32.2°Girdle: MED-THKPavilion 38°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,743 GBP|Low: £1,940 GBP|High: £8,419 GBP|Avg: £4,243 GBP|+3.9%
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 3, 2026
Retailer 7£1,940 GBP
Retailer 4£2,332 GBP
Retailer 3£2,416 GBP
Retailer 10£2,418 GBP
Retailer 2£2,741 GBP
Retailer 6£3,232 GBP
Retailer 11£3,452 GBP
Retailer 1£3,743 GBP
Retailer 5£4,168 GBP
Retailer 8£4,476 GBP
Retailer 12£6,068 GBP
Retailer 9£6,847 GBP
Retailer 13£7,120 GBP
Taylor and Hart£8,419 GBP

43 data points across 14 retailers

15 retailers£1,940 GBP to £8,419 GBP

A
Cheapest Retailer
-
£1,940 GBP
A
Retailer 2
-
£2,332 GBP
$3,129 USD
View
Final sale: no returns
Retailer 3
-
£2,416 GBP
$3,242 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
£2,418 GBP
$3,245 USD
View
A
Retailer 5
-
£2,741 GBP
$3,678 USD
View
A
Retailer 6
-
£3,232 GBP
View
A
Retailer 7
-
£3,452 GBP
$4,632 USD
View
A
Retailer 8
-
£3,743 GBP
ZAR 81,150 ZAR
View
B+
Retailer 9
-
£4,168 GBP
View
B+
Retailer 10
-
£4,476 GBP
A$9,240 AUD
View
Retailer 11
-
£4,806 GBP
$6,450 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
£6,068 GBP
$8,143 USD
View
B
Retailer 13
-
£6,847 GBP
A$14,135 AUD
View
B
Retailer 14
-
£7,120 GBP
$9,555 USD
View
Most Expensive
B
Taylor and Hart
1KV1LBE · Oct 31
£8,419 GBP
$11,298 USD
View
14 more retailers have this diamond
Prices start from £1,940 GBPSave up to £6,479 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
12.06ct Cushion
£1,940 GBP