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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG766657558

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG766657558

Diamond specifications and retailer prices

From $713 NZD
As of October 29, 2026
Save $1,380 NZD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,093 NZD at Brilliant Earth · As of October 29, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG766657558 or 766657558. Listed at 16 retailers as of October 29, 2026, with prices from $713 to $2,093, a $1,380 spread on the same certified stone. Brilliant Earth lists it at $2,093. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766657558
Dimensions6.70 × 6.38 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.70 mm6.38 mm1.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766657558
Side View
Table 68.0%Crown 37.8°Girdle: THK-VTKPavilion 32.6°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $2,093 NZD|Low: $428 NZD|High: $2,288 NZD|Avg: $1,165 NZD|-8.5%
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
October 29, 2026
Retailer 7$428 NZD
Retailer 11$571 NZD
Retailer 8$713 NZD
Retailer 12$726 NZD
Retailer 2$766 NZD
Retailer 14$836 NZD
Retailer 10$880 NZD
Retailer 4$997 NZD
Retailer 6$1,100 NZD
Retailer 3$1,453 NZD
Retailer 5$1,597 NZD
Retailer 13$1,648 NZD
Retailer 15$1,756 NZD
Retailer 9$1,987 NZD
Brilliant Earth$2,093 NZD

38 data points across 15 retailers

16 retailers$713 NZD to $2,093 NZD

Retailer 1
-
$428 NZD
Price last confirmed 11 days ago
Retailer 2
-
$571 NZD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$713 NZD
View
Retailer 4
-
$726 NZD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$766 NZD
View
A
Retailer 6
-
$836 NZD
View
A
Retailer 7
-
$880 NZD
View
Price last confirmed 7 days ago
Retailer 8
-
$997 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,100 NZD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$1,453 NZD
View
Retailer 11
-
$1,597 NZD
View
Price last confirmed 17 days ago
B
Retailer 12
-
$1,648 NZD
View
Retailer 13
-
$1,698 NZD
View
Price last confirmed 9 days ago
Retailer 14
-
$1,756 NZD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$1,987 NZD
View
Most Expensive
B
Brilliant Earth
18645848A · Oct 29
$2,093 NZD
$1,180 USD
View
15 more retailers have this diamond
Prices start from $713 NZDSave up to $1,380 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
$713 NZD