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Cushion|Lab Grown|IGI

1.21ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG831697763

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831697763

Diamond specifications and retailer prices

From £169 GBP
As of November 4, 2026
Save £720 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £889 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831697763 or 831697763. Listed at 14 retailers as of November 4, 2026, with prices from £169 to £889, a £720 spread on the same certified stone. Brilliant Earth lists it at £889. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831697763
Dimensions7.91 × 5.17 × 3.60 mm
L/W Ratio1.53
Girdle conditionFaceted
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
7.91 mm5.17 mm1.21 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831697763
Side View
Table 56.0%Crown 32.7°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 69.6%

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: Nov 4
Current: £871 GBP|Low: £161 GBP|High: £873 GBP|Avg: £439 GBP|+2.0%
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 5, 2026
Retailer 11£169 GBP
Retailer 5£213 GBP
Retailer 10£311 GBP
Retailer 9£322 GBP
Retailer 12£324 GBP
Retailer 6£339 GBP
Retailer 2£430 GBP
Retailer 8£455 GBP
Retailer 7£486 GBP
Retailer 3£611 GBP
Retailer 4£640 GBP
Retailer 1£871 GBP

17 data points across 12 retailers

14 retailers£169 GBP to £889 GBP

A
Cheapest Retailer
-
£169 GBP
Final sale: no returns
A
Retailer 2
-
£213 GBP
View
A
Retailer 3
-
£311 GBP
View
A
Retailer 4
-
£322 GBP
View
A
Retailer 5
-
£324 GBP
View
A
Retailer 6
-
£339 GBP
View
B+
Retailer 7
-
£430 GBP
View
B+
Retailer 8
-
£455 GBP
View
B+
Retailer 9
-
£486 GBP
View
B+
Retailer 10
-
£611 GBP
View
B+
Retailer 11
-
£640 GBP
View
Retailer 12
-
£704 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£871 GBP
View
Most Expensive
B
Brilliant Earth
22209424A · Nov 4
£889 GBP
$1,200 USD
View
13 more retailers have this diamond
Prices start from £169 GBPSave up to £720 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
£169 GBP