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Cushion|Lab Grown|IGI

0.68ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG657465999

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG657465999

Diamond specifications and retailer prices

From £254 GBP
As of November 4, 2026
Save £366 GBP (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £620 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.68ct lab-grown cushion diamond

This 0.68ct lab-grown cushion sits in the half to three-quarter carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG657465999 or 657465999. Listed at 4 retailers as of November 4, 2026, with prices from £254 to £620, a £366 spread on the same certified stone. Riddles Jewelry lists it at £620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.68
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657465999
Dimensions6.10 × 4.80 × 3.04 mm
L/W Ratio1.27
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.10 mm4.80 mm0.68 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657465999
Side View
Table 63.0%Crown 36.3°Girdle: MED-THKPavilion 40°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £525 GBP|Low: £238 GBP|High: £620 GBP|Avg: £413 GBP|+8.1%
Retailer 1
Retailer 2
Retailer 3
Riddles Jewelry
October 19, 2026
Retailer 3£254 GBP
Retailer 2£317 GBP
Retailer 1£525 GBP
Riddles Jewelry£620 GBP

7 data points across 4 retailers

4 retailers£254 GBP to £620 GBP

A
Cheapest Retailer
-
£254 GBP
B+
Retailer 2
-
£317 GBP
View
B
Retailer 3
-
£525 GBP
View
Most Expensive
B
Riddles Jewelry
1966212842 · Nov 4
£620 GBP
$835 USD
View
3 more retailers have this diamond
Prices start from £254 GBPSave up to £366 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
0.68ct Cushion
£254 GBP