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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 $609 NZD
$343 USD
As of November 1, 2026
Save $2,951 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,559 NZD at Helzberg Diamonds · As of November 1, 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 November 1, 2026, with prices from $609 to $3,559, a $2,951 spread on the same certified stone. Helzberg Diamonds lists it at $3,559. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,559 NZD|Low: $550 NZD|High: $4,737 NZD|Avg: $1,758 NZD
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
November 2, 2026
Retailer 16$550 NZD
Retailer 4$585 NZD
Retailer 5$609 NZD
Retailer 12$816 NZD
Retailer 8$921 NZD
Retailer 10$950 NZD
Retailer 7$1,002 NZD
Retailer 2$1,047 NZD
Retailer 11$1,181 NZD
Retailer 13$1,384 NZD
Retailer 3$1,583 NZD
Retailer 6$1,860 NZD
Retailer 15$2,217 NZD
Retailer 9$2,342 NZD
Retailer 17$3,176 NZD
Retailer 14$3,318 NZD
Helzberg Diamonds$3,559 NZD

21 data points across 17 retailers

17 retailers$609 NZD to $3,559 NZD

Retailer 1
-
$550 NZD
$310 USD
Price last confirmed 8 days ago
Retailer 2
-
$585 NZD
£260 GBP
View
Price last confirmed 16 days ago
A
Retailer 3
-
$609 NZD
$343 USD
View
Final sale: no returns
A
Retailer 4
-
$816 NZD
$460 USD
View
A
Retailer 5
-
$921 NZD
$519 USD
View
A
Retailer 6
-
$950 NZD
ZAR 8,650 ZAR
View
A
Retailer 7
-
$1,002 NZD
$565 USD
View
A
Retailer 8
-
$1,047 NZD
£465 GBP
View
A
Retailer 9
-
$1,181 NZD
€634 EUR
View
A
Retailer 10
-
$1,384 NZD
$780 USD
View
A
Retailer 11
-
$1,583 NZD
$892 USD
View
B+
Retailer 12
-
$1,860 NZD
$1,049 USD
View
B+
Retailer 13
-
$2,217 NZD
£984 GBP
View
B+
Retailer 14
-
$2,342 NZD
SGD 1,784 SGD
View
B
Retailer 15
-
$3,176 NZD
$1,790 USD
View
B
Retailer 16
-
$3,318 NZD
$1,870 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMPMLNH · Nov 1
$3,559 NZD
$2,006 USD
View
16 more retailers have this diamond
Prices start from $609 NZDSave up to $2,951 NZD

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
$609 NZD