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 $319 USD
£251 GBP
As of October 27, 2026
Save $801 USD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,120 USD 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 $319 to $1,120, a $801 spread on the same certified stone. Brilliant Earth lists it at $1,120. 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
Color
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: $598 USD|Low: $319 USD|High: $887 USD|Avg: $685 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 27, 2026
Retailer 5$319 USD
Retailer 2$436 USD
Retailer 6$476 USD
Retailer 1$598 USD
Retailer 3$634 USD
Retailer 4$843 USD
Retailer 7$883 USD
Retailer 8$887 USD

2 data points across 8 retailers

9 retailers$319 USD to $1,120 USD

A
Cheapest Retailer
-
$319 USD
£251 GBP
A
Retailer 2
-
$436 USD
€415 EUR
View
A
Retailer 3
-
$476 USD
£375 GBP
View
A
Retailer 4
-
$598 USD
View
B+
Retailer 5
-
$634 USD
A$976 AUD
View
B+
Retailer 6
-
$843 USD
SGD 1,139 SGD
View
B+
Retailer 7
-
$883 USD
View
B+
Retailer 8
-
$887 USD
View
Most Expensive
B
Brilliant Earth
22310899A · Oct 26
$1,120 USD
View
8 more retailers have this diamond
Prices start from $319 USDSave up to $801 USD

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
$319 USD