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Cushion|Lab Grown|IGI

1.51ct G IF Cushion Lab Grown Diamond

ID • G/IF • IGI LG632432416

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG632432416

Diamond specifications and retailer prices

From $849 NZD
As of November 4, 2026
Save $2,663 NZD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,512 NZD at Brilliance · As of November 5, 2026
View at Brilliance

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG632432416 or 632432416. Listed at 18 retailers as of November 4, 2026, with prices from $849 to $3,512, a $2,663 spread on the same certified stone. Brilliance lists it at $3,512. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632432416
Dimensions6.68 × 6.67 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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 Faint Blue
Top View
6.68 mm6.67 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632432416
Side View
Table 66.0%Crown 35°Girdle: MED-STKPavilion 42.6°Culet: NoneDepth 68.1%

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: $3,483 NZD|Low: $849 NZD|High: $3,809 NZD|Avg: $1,974 NZD|-8.5%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3$849 NZD
Retailer 13$939 NZD
Retailer 9$1,201 NZD
Retailer 5$1,366 NZD
Retailer 10$1,478 NZD
Retailer 8$1,516 NZD
Retailer 2$1,532 NZD
Retailer 6$1,617 NZD
Retailer 11$2,184 NZD
Retailer 12$2,962 NZD
Retailer 4$2,978 NZD
Retailer 7$3,448 NZD
Brilliance$3,483 NZD

45 data points across 13 retailers

18 retailers$849 NZD to $3,512 NZD

A
Cheapest Retailer
-
$849 NZD
Final sale: no returns
Retailer 2
-
$939 NZD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$1,025 NZD
View
A
Retailer 4
-
$1,201 NZD
View
A
Retailer 5
-
$1,366 NZD
View
A
Retailer 6
-
$1,478 NZD
View
A
Retailer 7
-
$1,516 NZD
View
A
Retailer 8
-
$1,532 NZD
View
A
Retailer 9
-
$1,617 NZD
View
A
Retailer 10
-
$1,715 NZD
View
Retailer 11
-
$2,184 NZD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$2,738 NZD
View
Retailer 13
-
$2,962 NZD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$2,978 NZD
View
B+
Retailer 15
-
$3,076 NZD
View
B+
Retailer 16
-
$3,448 NZD
View
B+
Retailer 17
-
$3,483 NZD
View
Most Expensive
B+
Brilliance
D24969707 · Nov 5
$3,512 NZD
$1,974 USD
View
17 more retailers have this diamond
Prices start from $849 NZDSave up to $2,663 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
1.51ct Cushion
$849 NZD