CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG669468191

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG669468191

Diamond specifications and retailer prices

From $1,277 NZD
As of November 4, 2026
Save $4,300 NZD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,806 NZD at Brilliant Earth · As of October 16, 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 LG669468191 or 669468191. Listed at 17 retailers as of November 3, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669468191
Dimensions7.98 × 5.85 × 4.05 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.98 mm5.85 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG669468191
Side View
Table 67.0%Crown 32.4°Girdle: THK-VTKPavilion 40°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
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 4
Current: $7,806 NZD|Low: $1,277 NZD|High: $7,806 NZD|Avg: $3,275 NZD
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
November 5, 2026
Retailer 6$1,277 NZD
Retailer 16$1,323 NZD
Retailer 4$1,595 NZD
Retailer 9$1,641 NZD
Retailer 15$2,031 NZD
Retailer 2$2,093 NZD
Retailer 13$2,194 NZD
Retailer 11$2,432 NZD
Retailer 10$3,214 NZD
Retailer 5$4,109 NZD
Retailer 8$4,568 NZD
Retailer 3$4,588 NZD
Retailer 7$4,627 NZD
Retailer 14$4,861 NZD
Retailer 12$5,577 NZD
Brilliant Earth$7,806 NZD

45 data points across 16 retailers

17 retailers$1,277 NZD to $5,577 NZD

A
Cheapest Retailer
-
$1,277 NZD
Final sale: no returns
Retailer 2
-
$1,323 NZD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$1,595 NZD
View
A
Retailer 4
-
$1,641 NZD
View
A
Retailer 5
-
$2,031 NZD
View
A
Retailer 6
-
$2,093 NZD
View
A
Retailer 7
-
$2,194 NZD
View
A
Retailer 8
-
$2,432 NZD
View
B+
Retailer 9
-
$3,214 NZD
View
B+
Retailer 10
-
$4,109 NZD
View
B
Retailer 11
-
$4,568 NZD
View
B+
Retailer 12
-
$4,588 NZD
View
B
Retailer 13
-
$4,627 NZD
View
Retailer 14
-
$4,861 NZD
View
Price last confirmed 17 days ago
B
Retailer 15
-
$5,049 NZD
View
B
Retailer 16
-
$5,577 NZD
View
Most Expensive
Brilliant Earth
14065763A · Oct 16
$7,806 NZD
$4,400 USD
View
Price last confirmed 19 days ago
16 more retailers have this diamond
Prices start from $1,277 NZDSave up to $4,300 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
$1,277 NZD