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Cushion|Lab Grown|IGI

2.80ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811629357

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

Certificate IGI LG811629357

Diamond specifications and retailer prices

From $2,933 NZD
$1,653 USD
As of October 30, 2026
Save $10,179 NZD (78%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $13,112 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.8ct lab-grown cushion diamond

This 2.8ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811629357 or 811629357. Listed at 6 retailers as of October 30, 2026, with prices from $2,933 to $13,112, a $10,179 spread on the same certified stone. Brilliant Earth lists it at $13,112. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.80
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811629357
Dimensions8.01 × 7.85 × 5.39 mm
L/W Ratio1.02
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
8.01 mm7.85 mm2.80 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811629357
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $13,112 NZD|Low: $2,933 NZD|High: $20,529 NZD|Avg: $8,421 NZD|-35.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$2,933 NZD
Retailer 5$3,982 NZD
Retailer 2$4,562 NZD
Retailer 6$5,928 NZD
Retailer 3$8,112 NZD
Brilliant Earth$13,112 NZD

31 data points across 6 retailers

6 retailers$2,933 NZD to $13,112 NZD

A+
Cheapest Retailer
-
$2,933 NZD
$1,653 USD
A
Retailer 2
-
$3,982 NZD
$2,244 USD
View
A
Retailer 3
-
$4,562 NZD
$2,571 USD
View
Retailer 4
-
$5,928 NZD
€3,182 EUR
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$8,112 NZD
£3,600 GBP
View
Most Expensive
B
Brilliant Earth
20556109A · Oct 30
$13,112 NZD
$7,390 USD
View
5 more retailers have this diamond
Prices start from $2,933 NZDSave up to $10,179 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+
2.80ct Cushion
$2,933 NZD