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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 $680 AUD
As of November 4, 2026
Save $2,134 AUD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,814 AUD at Brilliance · As of November 3, 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 3, 2026, with prices from $680 to $2,814, a $2,134 spread on the same certified stone. Brilliance lists it at $2,814. 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

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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: Nov 4
Current: $2,791 AUD|Low: $680 AUD|High: $3,052 AUD|Avg: $1,583 AUD|-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$680 AUD
Retailer 13$753 AUD
Retailer 9$962 AUD
Retailer 5$1,095 AUD
Retailer 10$1,185 AUD
Retailer 8$1,215 AUD
Retailer 2$1,227 AUD
Retailer 6$1,296 AUD
Retailer 11$1,751 AUD
Retailer 12$2,373 AUD
Retailer 4$2,386 AUD
Retailer 7$2,763 AUD
Brilliance$2,791 AUD

46 data points across 13 retailers

18 retailers$680 AUD to $2,814 AUD

A
Cheapest Retailer
-
$680 AUD
Final sale: no returns
Retailer 2
-
$753 AUD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$821 AUD
View
A
Retailer 4
-
$962 AUD
View
A
Retailer 5
-
$1,095 AUD
View
A
Retailer 6
-
$1,185 AUD
View
A
Retailer 7
-
$1,215 AUD
View
A
Retailer 8
-
$1,227 AUD
View
A
Retailer 9
-
$1,296 AUD
View
A
Retailer 10
-
$1,374 AUD
View
A
Retailer 11
-
$1,751 AUD
View
B+
Retailer 12
-
$2,194 AUD
View
Retailer 13
-
$2,373 AUD
View
Price last confirmed 17 days ago
B+
Retailer 14
-
$2,386 AUD
View
B+
Retailer 15
-
$2,465 AUD
View
B+
Retailer 16
-
$2,763 AUD
View
B+
Retailer 17
-
$2,791 AUD
View
Most Expensive
B+
Brilliance
D24969707 · Nov 3
$2,814 AUD
$1,974 USD
View
17 more retailers have this diamond
Prices start from $680 AUDSave up to $2,134 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
1.51ct Cushion
$680 AUD