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Cushion|Lab Grown|IGI

6.18ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG847638914

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847638914

Diamond specifications and retailer prices

From £740 GBP
$991 USD
As of November 1, 2026
Save £2,937 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,676 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 6.18ct lab-grown cushion diamond

This 6.18ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG847638914 or 847638914. Listed at 16 retailers as of November 1, 2026, with prices from £740 to £3,676, a £2,937 spread on the same certified stone. With Clarity lists it at £3,676. 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

6.18
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847638914
Dimensions13.35 × 9.27 × 5.88 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.35 mm9.27 mm6.18 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847638914
Side View
Table 66.0%Crown 38.6°Girdle: STK-THKPavilion 36.2°Culet: NoneDepth 63.4%

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 1
Current: £790 GBP|Low: £740 GBP|High: £3,916 GBP|Avg: £1,801 GBP|-4.5%
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
Retailer 14
Retailer 15
With Clarity
November 2, 2026
Retailer 2£740 GBP
Retailer 1£790 GBP
Retailer 11£899 GBP
Retailer 15£1,099 GBP
Retailer 14£1,122 GBP
Retailer 10£1,164 GBP
Retailer 9£1,180 GBP
Retailer 12£1,421 GBP
Retailer 5£1,492 GBP
Retailer 13£2,046 GBP
Retailer 7£2,184 GBP
Retailer 6£2,287 GBP
Retailer 8£2,561 GBP
Retailer 3£2,664 GBP
Retailer 4£2,906 GBP
With Clarity£3,676 GBP

14 data points across 16 retailers

16 retailers£740 GBP to £3,676 GBP

A
Cheapest Retailer
-
£740 GBP
$991 USD
Final sale: no returns
A
Retailer 2
-
£790 GBP
View
A
Retailer 3
-
£899 GBP
$1,205 USD
View
B+
Retailer 4
-
£1,099 GBP
$1,472 USD
View
A
Retailer 5
-
£1,122 GBP
$1,503 USD
View
A
Retailer 6
-
£1,164 GBP
€1,486 EUR
View
A
Retailer 7
-
£1,180 GBP
View
A
Retailer 8
-
£1,421 GBP
A$2,930 AUD
View
A
Retailer 9
-
£1,492 GBP
ZAR 32,302 ZAR
View
A
Retailer 10
-
£2,046 GBP
$2,741 USD
View
Retailer 11
-
£2,184 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£2,287 GBP
$3,064 USD
View
B+
Retailer 13
-
£2,561 GBP
SGD 4,637 SGD
View
B+
Retailer 14
-
£2,664 GBP
$3,569 USD
View
B+
Retailer 15
-
£2,906 GBP
View
Most Expensive
B
With Clarity
847638914 · Nov 2
£3,676 GBP
$4,926 USD
View
15 more retailers have this diamond
Prices start from £740 GBPSave up to £2,937 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
6.18ct Cushion
£740 GBP