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Cushion|Lab Grown|IGI

1.20ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG782646729

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG782646729

Diamond specifications and retailer prices

From £236 GBP
$314 USD
As of October 28, 2026
Save £758 GBP (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £996 GBP at Flawless Fine Jewelry · As of October 21, 2026
View at Flawless Fine Jewelry

About this 1.2ct lab-grown cushion diamond

This 1.2ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782646729 or 782646729. Listed at 12 retailers as of October 28, 2026, with a 321% 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

1.20
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782646729
Dimensions8.09 × 5.28 × 3.22 mm
L/W Ratio1.53
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.09 mm5.28 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782646729
Side View
Table 54.0%Crown 38.8°Girdle: STK-THKPavilion 31.9°Culet: LargeDepth 61.0%

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: Oct 28
Current: £996 GBP|Low: £193 GBP|High: £1,267 GBP|Avg: £530 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 28, 2026
Retailer 5£193 GBP
Retailer 13£236 GBP
Retailer 10£261 GBP
Retailer 12£346 GBP
Retailer 9£349 GBP
Retailer 4£430 GBP
Retailer 6£448 GBP
Retailer 7£458 GBP
Retailer 11£504 GBP
Retailer 2£635 GBP
Retailer 3£832 GBP
Retailer 8£994 GBP
Flawless Fine Jewelry£996 GBP

39 data points across 13 retailers

12 retailers£236 GBP to £994 GBP

A
Cheapest Retailer
-
£236 GBP
$314 USD
Final sale: no returns
A
Retailer 2
-
£261 GBP
$347 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£346 GBP
$461 USD
View
A
Retailer 4
-
£349 GBP
$465 USD
View
B+
Retailer 5
-
£430 GBP
$573 USD
View
B+
Retailer 6
-
£448 GBP
ZAR 9,642 ZAR
View
B+
Retailer 7
-
£458 GBP
View
B+
Retailer 8
-
£504 GBP
$671 USD
View
B
Retailer 9
-
£635 GBP
A$1,300 AUD
View
B
Retailer 10
-
£832 GBP
$1,108 USD
View
B
Retailer 11
-
£994 GBP
View
Most Expensive
B
Flawless Fine Jewelry
31DA47D18 · Oct 21
£996 GBP
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from £236 GBPSave up to £758 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
1.20ct Cushion
£236 GBP