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Cushion|Lab Grown|IGI

15.12ct F VS1 Cushion Lab Grown Diamond

FR • F/VS1 • IGI LG764630441

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG764630441

Diamond specifications and retailer prices

From £2,894 GBP
$3,883 USD
As of November 2, 2026
Save £18,464 GBP (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £21,357 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 15.12ct lab-grown cushion diamond

This 15.12ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG764630441 or 764630441. Listed at 14 retailers as of November 2, 2026, with prices from £2,894 to £21,357, a £18,464 spread on the same certified stone. Brilliant Earth lists it at £21,357. 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

15.12
Carat
F
Colour
VS1
Clarity
Fair
Cut

Specifications

CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle24.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764630441
Dimensions15.82 × 15.51 × 6.95 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.82 mm15.51 mm15.12 ctF / VS1
OriginLab Grown
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764630441
Side View
Table 72.0%Crown 34.6°Girdle: STK-THKPavilion 24.4°Culet: LargeDepth 44.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £21,357 GBP|Low: £2,639 GBP|High: £22,013 GBP|Avg: £5,861 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
November 2, 2026
Retailer 6£2,639 GBP
Retailer 4£2,734 GBP
Retailer 12£2,735 GBP
Retailer 2£2,894 GBP
Retailer 8£2,996 GBP
Retailer 5£3,079 GBP
Retailer 11£3,615 GBP
Retailer 13£4,215 GBP
Retailer 7£4,332 GBP
Retailer 3£5,015 GBP
Retailer 14£5,086 GBP
Retailer 9£8,584 GBP
Retailer 10£10,764 GBP
Brilliant Earth£21,357 GBP

41 data points across 14 retailers

14 retailers£2,894 GBP to £21,357 GBP

Retailer 1
-
£2,734 GBP
$3,669 USD
Price last confirmed 21 days ago
Retailer 2
-
£2,735 GBP
$3,670 USD
View
Price last confirmed 5 days ago
B+
Retailer 3
-
£2,894 GBP
$3,883 USD
View
B
Retailer 4
-
£2,996 GBP
$4,020 USD
View
B+
Retailer 5
-
£3,079 GBP
$4,132 USD
View
B+
Retailer 6
-
£3,615 GBP
View
Retailer 7
-
£4,215 GBP
ZAR 91,371 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£4,332 GBP
€5,536 EUR
View
Retailer 9
-
£5,015 GBP
$6,730 USD
View
Price last confirmed 12 days ago
Retailer 10
-
£5,086 GBP
A$10,500 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
£7,583 GBP
$10,176 USD
View
B
Retailer 12
-
£8,584 GBP
A$17,721 AUD
View
C
Retailer 13
-
£10,764 GBP
$14,444 USD
View
Most Expensive
C
Brilliant Earth
17876463A · Nov 2
£21,357 GBP
$28,660 USD
View
13 more retailers have this diamond
Prices start from £2,894 GBPSave up to £18,464 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.

B+
15.12ct Cushion
£2,894 GBP