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Cushion|Lab Grown|IGI

1.21ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG809686458

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

Certificate IGI LG809686458

Diamond specifications and retailer prices

From $577 NZD
£256 GBP
As of November 2, 2026
Save $1,443 NZD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,020 NZD at MOH London · As of November 2, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG809686458 or 809686458. Listed at 9 retailers as of November 2, 2026, with prices from $577 to $2,020, a $1,443 spread on the same certified stone. MOH London lists it at $2,020. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809686458
Dimensions6.16 × 5.86 × 3.67 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.16 mm5.86 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809686458
Side View
Table 59.0%Crown 34.1°Girdle: STK-THKPavilion 31.8°CuletDepth 62.6%

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 2
Current: $2,020 NZD|Low: $432 NZD|High: $2,045 NZD|Avg: $1,174 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$432 NZD
Retailer 2$577 NZD
Retailer 4$726 NZD
Retailer 9$754 NZD
Retailer 6$1,109 NZD
Retailer 8$1,324 NZD
Retailer 3$1,511 NZD
Retailer 5$1,679 NZD
MOH London$2,020 NZD

39 data points across 9 retailers

9 retailers$577 NZD to $2,020 NZD

Retailer 1
-
$432 NZD
$243 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$577 NZD
£256 GBP
View
A
Retailer 3
-
$726 NZD
€389 EUR
View
A
Retailer 4
-
$754 NZD
$424 USD
View
B+
Retailer 5
-
$1,109 NZD
$624 USD
View
Retailer 6
-
$1,324 NZD
$745 USD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$1,511 NZD
$850 USD
View
B
Retailer 8
-
$1,679 NZD
£744 GBP
View
Most Expensive
B
MOH London
LG809686458 · Nov 2
$2,020 NZD
£895 GBP
View
8 more retailers have this diamond
Prices start from $577 NZDSave up to $1,443 NZD

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
$577 NZD