CaratHunter
Plans
Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG645412281

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG645412281

Diamond specifications and retailer prices

From $480 NZD
As of November 4, 2026
Save $1,878 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,358 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 standard cut grade and certified by IGI LG645412281 or 645412281. Listed at 16 retailers as of November 4, 2026, with prices from $480 to $2,358, a $1,878 spread on the same certified stone. Reve Diamonds lists it at $2,358. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645412281
Dimensions6.24 × 6.22 × 4.22 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
6.24 mm6.22 mm1.28 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645412281
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40°Culet: NoneDepth 67.8%

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: $706 NZD|Low: $413 NZD|High: $2,437 NZD|Avg: $1,231 NZD|+14.4%
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
Retailer 15
Reve Diamonds
November 5, 2026
Retailer 11$480 NZD
Retailer 5$509 NZD
Retailer 1$706 NZD
Retailer 15$781 NZD
Retailer 13$875 NZD
Retailer 12$897 NZD
Retailer 8$934 NZD
Retailer 9$998 NZD
Retailer 6$1,074 NZD
Retailer 4$1,238 NZD
Retailer 3$1,290 NZD
Retailer 7$1,412 NZD
Retailer 10$1,804 NZD
Retailer 2$2,010 NZD
Retailer 14$2,035 NZD
Reve Diamonds$2,358 NZD

37 data points across 16 retailers

16 retailers$480 NZD to $2,358 NZD

A
Cheapest Retailer
-
$480 NZD
Final sale: no returns
Retailer 2
-
$509 NZD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$706 NZD
View
A
Retailer 4
-
$781 NZD
View
B+
Retailer 5
-
$875 NZD
View
B+
Retailer 6
-
$897 NZD
View
B+
Retailer 7
-
$934 NZD
View
B+
Retailer 8
-
$998 NZD
View
B+
Retailer 9
-
$1,074 NZD
View
Retailer 10
-
$1,238 NZD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,290 NZD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$1,412 NZD
View
B
Retailer 13
-
$1,804 NZD
View
B
Retailer 14
-
$2,010 NZD
View
B
Retailer 15
-
$2,035 NZD
View
Most Expensive
B
Reve Diamonds
E3A5C0318 · Nov 4
$2,358 NZD
$1,326 USD
View
15 more retailers have this diamond
Prices start from $480 NZDSave up to $1,878 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
$480 NZD