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Cushion|Lab Grown|IGI

1.30ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG831696571

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831696571

Diamond specifications and retailer prices

From $441 AUD
$310 USD
As of October 25, 2026
Save $2,414 AUD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,856 AUD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831696571 or 831696571. Listed at 17 retailers as of October 25, 2026, with prices from $441 to $2,856, a $2,414 spread on the same certified stone. Helzberg Diamonds lists it at $2,856. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831696571
Dimensions7.97 × 5.36 × 3.57 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
7.97 mm5.36 mm1.30 ctE / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831696571
Side View
Table 62.0%Crown 33.3°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 66.6%

Caratlytics Score

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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 25
Current: $2,856 AUD|Low: $441 AUD|High: $3,801 AUD|Avg: $1,427 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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 16$441 AUD
Retailer 4$469 AUD
Retailer 5$488 AUD
Retailer 10$655 AUD
Retailer 8$739 AUD
Retailer 15$758 AUD
Retailer 7$804 AUD
Retailer 2$840 AUD
Retailer 13$955 AUD
Retailer 11$1,110 AUD
Retailer 3$1,270 AUD
Retailer 6$1,493 AUD
Retailer 14$1,779 AUD
Retailer 9$1,879 AUD
Retailer 17$2,548 AUD
Retailer 12$2,662 AUD
Helzberg Diamonds$2,856 AUD

19 data points across 17 retailers

17 retailers$441 AUD to $2,856 AUD

A
Cheapest Retailer
-
$441 AUD
$310 USD
Retailer 2
-
$469 AUD
£260 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$488 AUD
$343 USD
View
Final sale: no returns
A
Retailer 4
-
$655 AUD
$460 USD
View
A
Retailer 5
-
$739 AUD
$519 USD
View
A
Retailer 6
-
$758 AUD
ZAR 8,607 ZAR
View
A
Retailer 7
-
$804 AUD
$565 USD
View
A
Retailer 8
-
$840 AUD
£465 GBP
View
A
Retailer 9
-
$955 AUD
€639 EUR
View
A
Retailer 10
-
$1,110 AUD
$780 USD
View
A
Retailer 11
-
$1,270 AUD
$892 USD
View
B+
Retailer 12
-
$1,493 AUD
$1,049 USD
View
B+
Retailer 13
-
$1,779 AUD
£984 GBP
View
B+
Retailer 14
-
$1,879 AUD
SGD 1,784 SGD
View
Retailer 15
-
$2,548 AUD
$1,790 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$2,662 AUD
$1,870 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMPMLNH · Oct 30
$2,856 AUD
$2,006 USD
View
16 more retailers have this diamond
Prices start from $441 AUDSave up to $2,414 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
1.30ct Cushion
$441 AUD