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Cushion|Lab Grown|IGI

1.21ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG791644343

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG791644343

Diamond specifications and retailer prices

From £217 GBP
As of November 4, 2026
Save £303 GBP (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £826 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG791644343 or 791644343. Listed at 13 retailers as of November 4, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791644343
Dimensions7.53 × 5.67 × 3.69 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm5.67 mm1.21 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791644343
Side View
Table 65.0%Crown 33.3°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £397 GBP|Low: £132 GBP|High: £826 GBP|Avg: £412 GBP|+10.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 2, 2026
Retailer 3£145 GBP
Retailer 2£217 GBP
Retailer 5£273 GBP
Retailer 8£286 GBP
Retailer 4£295 GBP
Retailer 6£337 GBP
Retailer 1£397 GBP
Retailer 11£401 GBP
Retailer 7£412 GBP
Retailer 10£520 GBP
Retailer 12£556 GBP
Retailer 9£753 GBP
Reve Diamonds£826 GBP

38 data points across 13 retailers

13 retailers£217 GBP to £520 GBP

B+
Cheapest Retailer
-
£217 GBP
A
Retailer 2
-
£273 GBP
View
Retailer 3
-
£286 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£295 GBP
View
Price last confirmed 43 days ago
A
Retailer 5
-
£337 GBP
View
B+
Retailer 6
-
£397 GBP
View
Retailer 7
-
£401 GBP
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£412 GBP
View
Retailer 9
-
£420 GBP
View
Price last confirmed 42 days ago
B
Retailer 10
-
£520 GBP
View
Retailer 11
-
£556 GBP
View
Price last confirmed 9 days ago
Retailer 12
-
£753 GBP
View
Price last confirmed 10 days ago
Most Expensive
Reve Diamonds
2DAAC8697 · Oct 25
£826 GBP
$1,112 USD
View
Price last confirmed 11 days ago
12 more retailers have this diamond
Prices start from £217 GBPSave up to £303 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
£217 GBP