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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG800669132

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800669132

Diamond specifications and retailer prices

From £291 GBP
ZAR 6,305 ZAR
As of October 27, 2026
Save £294 GBP (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.21ct lab-grown cushion diamond

This 1.21ct 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 LG800669132 or 800669132. Listed at 8 retailers as of October 27, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800669132
Dimensions7.45 × 5.40 × 3.79 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm5.40 mm1.21 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800669132
Side View
Table 65.0%Crown 36.2°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 70.2%

Caratlytics Score

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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: Oct 27
Current: £796 GBP|Low: £281 GBP|High: £802 GBP|Avg: £425 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3£291 GBP
Retailer 5£300 GBP
Retailer 2£305 GBP
Retailer 8£324 GBP
Retailer 6£409 GBP
Retailer 4£413 GBP
Retailer 7£585 GBP
MOH London£796 GBP

40 data points across 8 retailers

8 retailers£291 GBP to £585 GBP

A
Cheapest Retailer
-
£291 GBP
ZAR 6,305 ZAR
A
Retailer 2
-
£300 GBP
$402 USD
View
A
Retailer 3
-
£305 GBP
View
A
Retailer 4
-
£324 GBP
$435 USD
View
B+
Retailer 5
-
£409 GBP
$549 USD
View
Retailer 6
-
£413 GBP
A$853 AUD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£585 GBP
$785 USD
View
Most Expensive
MOH London
LG800669132 · Oct 21
£796 GBP
View
Price last confirmed 12 days ago
7 more retailers have this diamond
Prices start from £291 GBPSave up to £294 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
1.21ct Cushion
£291 GBP