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Cushion|Lab Grown|IGI

1.01ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG831623991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831623991

Diamond specifications and retailer prices

From £136 GBP
$182 USD
As of November 1, 2026
Save £934 GBP (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,069 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831623991 or 831623991. Listed at 15 retailers as of October 28, 2026, with prices from £136 to £1,069, a £934 spread on the same certified stone. Queensmith lists it at £1,069. 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

1.01
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831623991
Dimensions6.59 × 5.31 × 3.64 mm
L/W Ratio1.24
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.59 mm5.31 mm1.01 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831623991
Side View
Table 65.0%Crown 33.3°Girdle: MED-THKPavilion 36.3°Culet: NoneDepth 68.5%

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: £1,069 GBP|Low: £136 GBP|High: £1,069 GBP|Avg: £347 GBP
Queensmith
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
November 2, 2026
Retailer 3£136 GBP
Retailer 15£180 GBP
Retailer 6£203 GBP
Retailer 4£238 GBP
Retailer 2£258 GBP
Retailer 10£259 GBP
Retailer 8£265 GBP
Retailer 13£285 GBP
Retailer 5£330 GBP
Retailer 14£365 GBP
Retailer 9£366 GBP
Retailer 7£523 GBP
Retailer 11£701 GBP
Retailer 12£800 GBP
Queensmith£1,069 GBP

21 data points across 15 retailers

15 retailers£136 GBP to £1,069 GBP

A
Cheapest Retailer
-
£136 GBP
$182 USD
Final sale: no returns
B+
Retailer 2
-
£203 GBP
$272 USD
View
A
Retailer 3
-
£238 GBP
$320 USD
View
A
Retailer 4
-
£258 GBP
€330 EUR
View
A
Retailer 5
-
£259 GBP
ZAR 5,609 ZAR
View
A
Retailer 6
-
£265 GBP
View
A
Retailer 7
-
£285 GBP
View
B+
Retailer 8
-
£330 GBP
$443 USD
View
B+
Retailer 9
-
£365 GBP
$490 USD
View
B+
Retailer 10
-
£366 GBP
A$755 AUD
View
B
Retailer 11
-
£523 GBP
$702 USD
View
B
Retailer 12
-
£701 GBP
View
B
Retailer 13
-
£768 GBP
$1,030 USD
View
B
Retailer 14
-
£800 GBP
$1,073 USD
View
Most Expensive
B
Queensmith
LG831623991 · Oct 28
£1,069 GBP
View
14 more retailers have this diamond
Prices start from £136 GBPSave up to £934 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
1.01ct Cushion
£136 GBP