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Cushion|Lab Grown|IGI

1.21ct D VVS2 Cushion Lab Grown Diamond

EX • D/VVS2 • IGI LG811636246

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG811636246

Diamond specifications and retailer prices

From £298 GBP
As of November 6, 2026
Save £990 GBP (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,604 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811636246 or 811636246. Listed at 19 retailers as of November 5, 2026, with a 332% 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
D
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle28.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811636246
Dimensions7.60 × 5.14 × 3.12 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.60 mm5.14 mm1.21 ctD / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811636246
Side View
Table 57.0%Crown 33.7°Girdle: MED-THKPavilion 28.5°Culet: LargeDepth 60.7%

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 6
Current: £560 GBP|Low: £298 GBP|High: £1,307 GBP|Avg: £737 GBP|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 11£298 GBP
Retailer 2£330 GBP
Retailer 10£445 GBP
Retailer 9£524 GBP
Retailer 1£560 GBP
Retailer 5£589 GBP
Retailer 12£661 GBP
Retailer 7£806 GBP
Retailer 8£835 GBP
Retailer 3£1,055 GBP
Retailer 4£1,287 GBP
Retailer 6£1,288 GBP

43 data points across 12 retailers

19 retailers£298 GBP to £1,288 GBP

A
Cheapest Retailer
-
£298 GBP
Final sale: no returns
A
Retailer 2
-
£330 GBP
View
A
Retailer 3
-
£363 GBP
View
B+
Retailer 4
-
£417 GBP
View
B+
Retailer 5
-
£445 GBP
View
B+
Retailer 6
-
£445 GBP
View
B+
Retailer 7
-
£524 GBP
View
B+
Retailer 8
-
£560 GBP
View
B+
Retailer 9
-
£589 GBP
View
Retailer 10
-
£661 GBP
View
Price last confirmed 10 days ago
B
Retailer 11
-
£806 GBP
View
B
Retailer 12
-
£835 GBP
View
B
Retailer 13
-
£1,055 GBP
View
B
Retailer 14
-
£1,093 GBP
View
B
Retailer 15
-
£1,201 GBP
View
B
Retailer 16
-
£1,265 GBP
View
B
Retailer 17
-
£1,287 GBP
View
B
Retailer 18
-
£1,288 GBP
View
Most Expensive
Queensmith
LG811636246 · Oct 27
£1,604 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from £298 GBPSave up to £990 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
£298 GBP