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Cushion|Lab Grown|IGI

1.21ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG803603926

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG803603926

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of October 31, 2026
Save £995 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,157 GBP at Brilliant Earth · As of October 29, 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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803603926 or 803603926. Listed at 12 retailers as of October 29, 2026, with prices from £162 to £1,157, a £995 spread on the same certified stone. Brilliant Earth lists it at £1,157. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803603926
Dimensions6.32 × 6.21 × 3.97 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
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
6.32 mm6.21 mm1.21 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803603926
Side View
Table 61.0%Crown 33.6°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £1,157 GBP|Low: £93 GBP|High: £1,187 GBP|Avg: £473 GBP|-2.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 5£93 GBP
Retailer 2£162 GBP
Retailer 10£236 GBP
Retailer 6£294 GBP
Retailer 11£302 GBP
Retailer 16£315 GBP
Retailer 9£329 GBP
Retailer 15£383 GBP
Retailer 4£427 GBP
Retailer 3£462 GBP
Retailer 7£469 GBP
Retailer 13£582 GBP
Retailer 14£605 GBP
Retailer 12£846 GBP
Retailer 8£910 GBP
Brilliant Earth£1,157 GBP

16 data points across 16 retailers

12 retailers£162 GBP to £1,157 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
Final sale: no returns
A
Retailer 2
-
£236 GBP
View
A
Retailer 3
-
£302 GBP
€386 EUR
View
A
Retailer 4
-
£315 GBP
$422 USD
View
A
Retailer 5
-
£329 GBP
View
A
Retailer 6
-
£383 GBP
$513 USD
View
B+
Retailer 7
-
£427 GBP
$572 USD
View
Retailer 8
-
£462 GBP
A$952 AUD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£582 GBP
A$1,199 AUD
View
B+
Retailer 10
-
£605 GBP
$810 USD
View
B
Retailer 11
-
£846 GBP
View
Most Expensive
B
Brilliant Earth
19740784A · Oct 29
£1,157 GBP
$1,550 USD
View
11 more retailers have this diamond
Prices start from £162 GBPSave up to £995 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
£162 GBP