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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG826615134

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

Certificate IGI LG826615134

Diamond specifications and retailer prices

From $794 NZD
As of October 31, 2026
Save $713 NZD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,131 NZD at Reve Diamonds · As of October 30, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826615134 or 826615134. Listed at 14 retailers as of October 31, 2026, with a 90% 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

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826615134
Dimensions6.32 × 6.32 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.32 mm6.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826615134
Side View
Table 62.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 66.5%

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: Oct 31
Current: $794 NZD|Low: $422 NZD|High: $2,131 NZD|Avg: $1,076 NZD|+6.5%
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
Reve Diamonds
October 31, 2026
Retailer 5$422 NZD
Retailer 9$458 NZD
Retailer 12$709 NZD
Retailer 14$723 NZD
Retailer 10$765 NZD
Retailer 1$794 NZD
Retailer 8$869 NZD
Retailer 3$1,028 NZD
Retailer 7$1,142 NZD
Retailer 13$1,191 NZD
Retailer 2$1,237 NZD
Retailer 11$1,506 NZD
Retailer 6$1,624 NZD
Retailer 4$1,981 NZD
Reve Diamonds$2,131 NZD

38 data points across 15 retailers

14 retailers$794 NZD to $1,506 NZD

Retailer 1
-
$422 NZD
Price last confirmed 13 days ago
Retailer 2
-
$709 NZD
View
Price last confirmed 9 days ago
Retailer 3
-
$723 NZD
View
Price last confirmed 11 days ago
Retailer 4
-
$765 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$794 NZD
View
Retailer 6
-
$869 NZD
View
Price last confirmed 8 days ago
Retailer 7
-
$1,028 NZD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$1,142 NZD
View
Retailer 9
-
$1,191 NZD
View
Price last confirmed 10 days ago
Retailer 10
-
$1,237 NZD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,506 NZD
View
Retailer 12
-
$1,624 NZD
View
Price last confirmed 9 days ago
Retailer 13
-
$1,981 NZD
View
Price last confirmed 19 days ago
Most Expensive
Reve Diamonds
48955B1E0 · Oct 30
$2,131 NZD
$1,181 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $794 NZDSave up to $713 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
$794 NZD