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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 $477 USD
As of November 1, 2026
Save $1,497 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,974 USD at Brilliance · As of November 1, 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 1, 2026, with prices from $477 to $1,974, a $1,497 spread on the same certified stone. Brilliance lists it at $1,974. 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
Color
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 1
Current: $1,958 USD|Low: $477 USD|High: $2,141 USD|Avg: $1,109 USD|-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 2, 2026
Retailer 3$477 USD
Retailer 13$528 USD
Retailer 9$675 USD
Retailer 5$768 USD
Retailer 10$831 USD
Retailer 8$853 USD
Retailer 6$870 USD
Retailer 2$910 USD
Retailer 11$1,229 USD
Retailer 12$1,665 USD
Retailer 4$1,675 USD
Retailer 7$1,938 USD
Brilliance$1,958 USD

44 data points across 13 retailers

18 retailers$477 USD to $1,974 USD

A
Cheapest Retailer
-
$477 USD
Final sale: no returns
Retailer 2
-
$528 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$576 USD
HK$4,500 HKD
View
A
Retailer 4
-
$675 USD
View
A
Retailer 5
-
$768 USD
View
A
Retailer 6
-
$831 USD
View
A
Retailer 7
-
$853 USD
€812 EUR
View
A
Retailer 8
-
$870 USD
£685 GBP
View
A
Retailer 9
-
$910 USD
ZAR 14,701 ZAR
View
A
Retailer 10
-
$964 USD
View
A
Retailer 11
-
$1,229 USD
A$1,890 AUD
View
B+
Retailer 12
-
$1,539 USD
£1,212 GBP
View
Retailer 13
-
$1,665 USD
View
Price last confirmed 15 days ago
B+
Retailer 14
-
$1,675 USD
SGD 2,263 SGD
View
B+
Retailer 15
-
$1,729 USD
View
B+
Retailer 16
-
$1,938 USD
£1,526 GBP
View
B+
Retailer 17
-
$1,958 USD
View
Most Expensive
B+
Brilliance
D24969707 · Nov 1
$1,974 USD
View
17 more retailers have this diamond
Prices start from $477 USDSave up to $1,497 USD

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
$477 USD