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Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825660202

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825660202

Diamond specifications and retailer prices

From $820 NZD
As of November 4, 2026
Save $3,485 NZD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,305 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660202 or 825660202. Listed at 15 retailers as of November 4, 2026, with prices from $820 to $4,305, a $3,485 spread on the same certified stone. Brilliant Earth lists it at $4,305. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660202
Dimensions8.30 × 5.50 × 3.68 mm
L/W Ratio1.51
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
8.30 mm5.50 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660202
Side View
Table 61.0%Crown 30.9°Girdle: MED-THKPavilion 34.3°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
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: $4,305 NZD|Low: $820 NZD|High: $4,910 NZD|Avg: $2,258 NZD|-12.3%
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
November 5, 2026
Retailer 9$820 NZD
Retailer 5$914 NZD
Retailer 12$1,067 NZD
Retailer 13$1,261 NZD
Retailer 11$1,279 NZD
Retailer 8$1,427 NZD
Retailer 3$1,576 NZD
Retailer 2$1,578 NZD
Retailer 10$2,017 NZD
Retailer 14$2,640 NZD
Retailer 6$2,953 NZD
Retailer 7$3,061 NZD
Retailer 4$3,357 NZD
Brilliant Earth$4,305 NZD

36 data points across 14 retailers

15 retailers$820 NZD to $4,305 NZD

A
Cheapest Retailer
-
$820 NZD
Final sale: no returns
Retailer 2
-
$914 NZD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$1,067 NZD
View
A
Retailer 4
-
$1,261 NZD
View
A
Retailer 5
-
$1,279 NZD
View
A
Retailer 6
-
$1,427 NZD
View
A
Retailer 7
-
$1,576 NZD
View
A
Retailer 8
-
$1,578 NZD
View
B+
Retailer 9
-
$2,017 NZD
View
B+
Retailer 10
-
$2,640 NZD
View
Retailer 11
-
$2,953 NZD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$3,061 NZD
View
B+
Retailer 13
-
$3,357 NZD
View
Retailer 14
-
$3,524 NZD
View
Price last confirmed 27 days ago
Most Expensive
B
Brilliant Earth
21434032A · Nov 4
$4,305 NZD
$2,420 USD
View
14 more retailers have this diamond
Prices start from $820 NZDSave up to $3,485 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
$820 NZD