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Cushion|Lab Grown|IGI

1.59ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG809639701

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

Certificate IGI LG809639701

Diamond specifications and retailer prices

From £309 GBP
$414 USD
As of November 1, 2026
Save £905 GBP (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,214 GBP at Frank Darling · As of November 3, 2026
View at Frank Darling

About this 1.59ct lab-grown cushion diamond

This 1.59ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG809639701 or 809639701. Listed at 3 retailers as of November 1, 2026, with prices from £309 to £1,214, a £905 spread on the same certified stone. Frank Darling lists it at £1,214. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809639701
Dimensions6.85 × 6.78 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.85 mm6.78 mm1.59 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809639701
Side View
Table 61.0%Crown 33.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 67.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £1,214 GBP|Low: £288 GBP|High: £1,759 GBP|Avg: £807 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£309 GBP
Retailer 9£393 GBP
Retailer 5£415 GBP
Retailer 4£428 GBP
Retailer 2£817 GBP
Retailer 6£909 GBP
Retailer 8£932 GBP
Frank Darling£1,214 GBP
Retailer 7£1,759 GBP

7 data points across 9 retailers

3 retailers£309 GBP to £1,214 GBP

B+
Cheapest Retailer
-
£309 GBP
$414 USD
B+
Retailer 2
-
£817 GBP
$1,096 USD
View
Most Expensive
B
Frank Darling
100734154341KD · Nov 3
£1,214 GBP
$1,629 USD
View
2 more retailers have this diamond
Prices start from £309 GBPSave up to £905 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+
1.59ct Cushion
£309 GBP