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Cushion|Lab Grown|IGI

1.26ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG830620551

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

Certificate IGI LG830620551

Diamond specifications and retailer prices

From $454 AUD
£251 GBP
As of October 27, 2026
Save $1,141 AUD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,594 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.26ct lab-grown cushion diamond

This 1.26ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830620551 or 830620551. Listed at 9 retailers as of October 26, 2026, with prices from $454 to $1,594, a $1,141 spread on the same certified stone. Brilliant Earth lists it at $1,594. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620551
Dimensions6.32 × 6.28 × 4.08 mm
L/W Ratio1.01
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
6.32 mm6.28 mm1.26 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620551
Side View
Table 62.0%Crown 38°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
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: Oct 27
Current: $851 AUD|Low: $454 AUD|High: $1,263 AUD|Avg: $975 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 27, 2026
Retailer 5$454 AUD
Retailer 2$620 AUD
Retailer 6$677 AUD
Retailer 1$851 AUD
Retailer 3$903 AUD
Retailer 4$1,200 AUD
Retailer 7$1,257 AUD
Retailer 8$1,263 AUD

2 data points across 8 retailers

9 retailers$454 AUD to $1,594 AUD

A
Cheapest Retailer
-
$454 AUD
£251 GBP
A
Retailer 2
-
$620 AUD
€415 EUR
View
A
Retailer 3
-
$677 AUD
£375 GBP
View
A
Retailer 4
-
$851 AUD
$598 USD
View
B+
Retailer 5
-
$903 AUD
View
B+
Retailer 6
-
$1,200 AUD
SGD 1,139 SGD
View
B+
Retailer 7
-
$1,257 AUD
$883 USD
View
B+
Retailer 8
-
$1,263 AUD
$887 USD
View
Most Expensive
B
Brilliant Earth
22310899A · Oct 26
$1,594 AUD
$1,120 USD
View
8 more retailers have this diamond
Prices start from $454 AUDSave up to $1,141 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
1.26ct Cushion
$454 AUD