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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG770608936

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG770608936

Diamond specifications and retailer prices

From $443 NZD
As of November 4, 2026
Save $1,812 NZD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,255 NZD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG770608936 or 770608936. Listed at 20 retailers as of November 4, 2026, with prices from $443 to $2,255, a $1,812 spread on the same certified stone. Reve Diamonds lists it at $2,255. 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

1.28
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770608936
Dimensions5.40 × 5.40 × 3.74 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.40 mm5.40 mm1.28 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770608936
Side View
Table 63.0%Crown 39.7°Girdle: STK-VTKPavilion 34.1°Culet: NoneDepth 69.3%

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 4
Current: $1,925 NZD|Low: $443 NZD|High: $2,081 NZD|Avg: $1,097 NZD
Retailer 1
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
November 5, 2026
Retailer 6$443 NZD
Retailer 2$493 NZD
Retailer 3$662 NZD
Retailer 12$793 NZD
Retailer 11$849 NZD
Retailer 7$907 NZD
Retailer 5$927 NZD
Retailer 9$1,203 NZD
Retailer 10$1,306 NZD
Retailer 4$1,316 NZD
Retailer 14$1,436 NZD
Retailer 13$1,761 NZD
Retailer 1$1,925 NZD
Retailer 8$1,967 NZD

43 data points across 14 retailers

20 retailers$443 NZD to $2,255 NZD

A
Cheapest Retailer
-
$443 NZD
Final sale: no returns
Retailer 2
-
$493 NZD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$546 NZD
View
B+
Retailer 4
-
$662 NZD
View
A
Retailer 5
-
$793 NZD
View
A
Retailer 6
-
$849 NZD
View
A
Retailer 7
-
$907 NZD
View
B+
Retailer 8
-
$923 NZD
View
B+
Retailer 9
-
$927 NZD
View
B+
Retailer 10
-
$1,203 NZD
View
B
Retailer 11
-
$1,306 NZD
View
Retailer 12
-
$1,316 NZD
View
Price last confirmed 22 days ago
Retailer 13
-
$1,436 NZD
View
Price last confirmed 7 days ago
B
Retailer 14
-
$1,592 NZD
View
B
Retailer 15
-
$1,676 NZD
View
B
Retailer 16
-
$1,697 NZD
View
B
Retailer 17
-
$1,761 NZD
View
B
Retailer 18
-
$1,925 NZD
View
B
Retailer 19
-
$1,967 NZD
View
Most Expensive
B
Reve Diamonds
F25E505C1 · Nov 4
$2,255 NZD
$1,268 USD
View
19 more retailers have this diamond
Prices start from $443 NZDSave up to $1,812 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
1.28ct Cushion
$443 NZD