CaratHunter
Plans
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 $463 AUD
£256 GBP
As of November 2, 2026
Save $1,168 AUD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,631 AUD at MOH London · As of October 29, 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 October 29, 2026, with prices from $463 to $1,631, a $1,168 spread on the same certified stone. MOH London lists it at $1,631. 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: $1,631 AUD|Low: $347 AUD|High: $1,642 AUD|Avg: $943 AUD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$347 AUD
Retailer 2$463 AUD
Retailer 4$583 AUD
Retailer 9$605 AUD
Retailer 6$890 AUD
Retailer 8$1,063 AUD
Retailer 3$1,213 AUD
Retailer 5$1,348 AUD
MOH London$1,631 AUD

39 data points across 9 retailers

9 retailers$463 AUD to $1,631 AUD

Retailer 1
-
$347 AUD
$243 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$463 AUD
£256 GBP
View
A
Retailer 3
-
$583 AUD
€389 EUR
View
A
Retailer 4
-
$605 AUD
$424 USD
View
B+
Retailer 5
-
$890 AUD
$624 USD
View
Retailer 6
-
$1,063 AUD
$745 USD
View
Price last confirmed 28 days ago
B
Retailer 7
-
$1,213 AUD
$850 USD
View
B
Retailer 8
-
$1,348 AUD
£744 GBP
View
Most Expensive
B
MOH London
LG809686458 · Oct 29
$1,631 AUD
£900 GBP
View
8 more retailers have this diamond
Prices start from $463 AUDSave up to $1,168 AUD

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
$463 AUD