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Cushion|Lab Grown|IGI

1.62ct F VS1 Cushion Lab Grown Diamond

GD • F/VS1 • IGI LG588350311

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG588350311

Diamond specifications and retailer prices

From £305 GBP
$408 USD
As of November 1, 2026
Save £673 GBP (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £978 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.62ct lab-grown cushion diamond

This 1.62ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG588350311 or 588350311. Listed at 7 retailers as of October 31, 2026, with prices from £305 to £978, a £673 spread on the same certified stone. Brilliant Earth lists it at £978. 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

1.62
Carat
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588350311
Dimensions7.23 × 6.79 × 4.24 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.23 mm6.79 mm1.62 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588350311
Side View
Table 63.0%Crown 33.3°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £978 GBP|Low: £296 GBP|High: £1,008 GBP|Avg: £620 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
November 1, 2026
Retailer 5£305 GBP
Retailer 4£381 GBP
Retailer 7£423 GBP
Retailer 8£453 GBP
Retailer 11£467 GBP
Retailer 9£736 GBP
Retailer 2£802 GBP
Retailer 3£908 GBP
Retailer 6£922 GBP
Brilliant Earth£978 GBP
Retailer 10£985 GBP

17 data points across 11 retailers

7 retailers£305 GBP to £978 GBP

B+
Cheapest Retailer
-
£305 GBP
$408 USD
A
Retailer 2
-
£381 GBP
€486 EUR
View
Retailer 3
-
£736 GBP
A$1,518 AUD
View
Price last confirmed 35 days ago
Retailer 4
-
£797 GBP
$1,068 USD
View
Price last confirmed 40 days ago
B
Retailer 5
-
£802 GBP
$1,075 USD
View
B
Retailer 6
-
£922 GBP
$1,235 USD
View
Most Expensive
B
Brilliant Earth
22162127A · Oct 31
£978 GBP
$1,310 USD
View
6 more retailers have this diamond
Prices start from £305 GBPSave up to £673 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
1.62ct Cushion
£305 GBP