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Cushion|Lab Grown|IGI

1.26ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634410

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634410

Diamond specifications and retailer prices

From $647 AUD
As of November 4, 2026
Save $2,783 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,430 AUD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634410 or 840634410. Listed at 14 retailers as of November 4, 2026, with prices from $647 to $3,430, a $2,783 spread on the same certified stone. Helzberg Diamonds lists it at $3,430. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.26
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634410
Dimensions8.01 × 5.39 × 3.71 mm
L/W Ratio1.49
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
8.01 mm5.39 mm1.26 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634410
Side View
Table 55.0%Crown 35°Girdle: STK-THKPavilion 35.5°Culet: NoneDepth 68.8%

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: Nov 4
Current: $3,430 AUD|Low: $647 AUD|High: $3,430 AUD|Avg: $1,611 AUD
Helzberg Diamonds
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
November 5, 2026
Retailer 8$647 AUD
Retailer 9$647 AUD
Retailer 11$1,014 AUD
Retailer 6$1,052 AUD
Retailer 4$1,091 AUD
Retailer 3$1,109 AUD
Retailer 2$1,125 AUD
Retailer 14$1,244 AUD
Retailer 5$1,254 AUD
Retailer 10$1,591 AUD
Retailer 13$2,087 AUD
Retailer 12$2,420 AUD
Retailer 7$2,459 AUD
Helzberg Diamonds$3,430 AUD

18 data points across 14 retailers

14 retailers$647 AUD to $3,430 AUD

A
Cheapest Retailer
-
$647 AUD
Final sale: no returns
A
Retailer 2
-
$647 AUD
View
A
Retailer 3
-
$1,014 AUD
View
A
Retailer 4
-
$1,052 AUD
View
A
Retailer 5
-
$1,091 AUD
View
A
Retailer 6
-
$1,109 AUD
View
A
Retailer 7
-
$1,125 AUD
View
A
Retailer 8
-
$1,244 AUD
View
A
Retailer 9
-
$1,254 AUD
View
B+
Retailer 10
-
$1,591 AUD
View
B+
Retailer 11
-
$2,087 AUD
View
B+
Retailer 12
-
$2,420 AUD
View
B
Retailer 13
-
$2,459 AUD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKKHG · Nov 4
$3,430 AUD
$2,406 USD
View
13 more retailers have this diamond
Prices start from $647 AUDSave up to $2,783 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
$647 AUD