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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG741524338

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG741524338

Diamond specifications and retailer prices

From $827 NZD
As of November 4, 2026
Save $4,229 NZD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,056 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741524338 or 741524338. Listed at 20 retailers as of November 4, 2026, with prices from $827 to $5,056, a $4,229 spread on the same certified stone. Brilliant Earth lists it at $5,056. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741524338
Dimensions7.50 × 6.25 × 4.15 mm
L/W Ratio1.20
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
Top View
7.50 mm6.25 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741524338
Side View
Table 59.0%Crown 37.8°Girdle: THN-STKPavilion 36.7°Culet: NoneDepth 66.4%

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: $5,056 NZD|Low: $827 NZD|High: $6,351 NZD|Avg: $2,607 NZD|-20.4%
Brilliant Earth
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
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 17$827 NZD
Retailer 18$1,029 NZD
Retailer 20$1,066 NZD
Retailer 3$1,295 NZD
Retailer 19$1,345 NZD
Retailer 16$1,467 NZD
Retailer 2$1,485 NZD
Retailer 15$1,581 NZD
Retailer 5$1,863 NZD
Retailer 8$2,120 NZD
Retailer 14$2,138 NZD
Retailer 10$3,007 NZD
Retailer 7$3,064 NZD
Retailer 9$3,133 NZD
Retailer 4$3,344 NZD
Retailer 13$3,358 NZD
Retailer 6$3,433 NZD
Retailer 12$4,350 NZD
Retailer 11$4,595 NZD
Brilliant Earth$5,056 NZD

37 data points across 20 retailers

20 retailers$827 NZD to $5,056 NZD

A
Cheapest Retailer
-
$827 NZD
Final sale: no returns
A
Retailer 2
-
$1,029 NZD
View
A
Retailer 3
-
$1,066 NZD
View
A
Retailer 4
-
$1,295 NZD
View
A
Retailer 5
-
$1,345 NZD
View
A
Retailer 6
-
$1,467 NZD
View
A
Retailer 7
-
$1,485 NZD
View
A
Retailer 8
-
$1,581 NZD
View
A
Retailer 9
-
$1,863 NZD
View
A
Retailer 10
-
$2,120 NZD
View
A
Retailer 11
-
$2,138 NZD
View
B+
Retailer 12
-
$3,007 NZD
View
B+
Retailer 13
-
$3,064 NZD
View
B+
Retailer 14
-
$3,133 NZD
View
B+
Retailer 15
-
$3,344 NZD
View
B+
Retailer 16
-
$3,358 NZD
View
B+
Retailer 17
-
$3,433 NZD
View
Retailer 18
-
$4,350 NZD
View
Price last confirmed 28 days ago
Retailer 19
-
$4,595 NZD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
16164004A · Nov 4
$5,056 NZD
$2,850 USD
View
19 more retailers have this diamond
Prices start from $827 NZDSave up to $4,229 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
$827 NZD