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Cushion|Lab Grown|IGI

1.51ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG813661595

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813661595

Diamond specifications and retailer prices

From $550 NZD
As of November 5, 2026
Save $1,656 NZD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,728 NZD at Queensmith · As of October 27, 2026
View at Queensmith

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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG813661595 or 813661595. Listed at 17 retailers as of November 4, 2026, with a 301% 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
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813661595
Dimensions7.11 × 6.20 × 4.12 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.11 mm6.20 mm1.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813661595
Side View
Table 66.0%Crown 32.4°Girdle: STK-VTKPavilion 37.2°Culet: NoneDepth 66.5%

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 5
Current: $550 NZD|Low: $550 NZD|High: $2,579 NZD|Avg: $1,237 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 1$550 NZD
Retailer 8$767 NZD
Retailer 9$813 NZD
Retailer 7$817 NZD
Retailer 5$868 NZD
Retailer 3$930 NZD
Retailer 11$1,106 NZD
Retailer 10$1,589 NZD
Retailer 4$1,797 NZD
Retailer 2$1,843 NZD
Retailer 6$1,893 NZD
Retailer 12$2,366 NZD

33 data points across 12 retailers

17 retailers$550 NZD to $2,206 NZD

A
Cheapest Retailer
-
$550 NZD
A
Retailer 2
-
$767 NZD
View
A
Retailer 3
-
$813 NZD
View
A
Retailer 4
-
$817 NZD
View
A
Retailer 5
-
$868 NZD
View
A
Retailer 6
-
$927 NZD
View
A
Retailer 7
-
$930 NZD
View
Retailer 8
-
$1,106 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,589 NZD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$1,615 NZD
View
B+
Retailer 11
-
$1,722 NZD
View
B+
Retailer 12
-
$1,797 NZD
View
B
Retailer 13
-
$1,843 NZD
View
B+
Retailer 14
-
$1,893 NZD
View
B
Retailer 15
-
$2,206 NZD
View
Retailer 16
-
$2,366 NZD
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
LG813661595 · Oct 27
$3,728 NZD
£1,650 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $550 NZDSave up to $1,656 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
$550 NZD