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Cushion|Lab Grown|IGI

3.28ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG544280736

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG544280736

Diamond specifications and retailer prices

From $825 NZD
$465 USD
As of October 31, 2026
Save $5,562 NZD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,387 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.28ct lab-grown cushion diamond

This 3.28ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544280736 or 544280736. Listed at 13 retailers as of October 31, 2026, with prices from $825 to $6,387, a $5,562 spread on the same certified stone. Brilliant Earth lists it at $6,387. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.28
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544280736
Dimensions8.62 × 8.35 × 5.43 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
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
8.62 mm8.35 mm3.28 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544280736
Side View
Table 65.0%Crown 36.3°Girdle: MED-VTKPavilion 37.3°Culet: NoneDepth 65.0%

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: Oct 31
Current: $6,387 NZD|Low: $442 NZD|High: $9,404 NZD|Avg: $2,456 NZD|-30.0%
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
November 1, 2026
Retailer 12$825 NZD
Retailer 8$914 NZD
Retailer 4$999 NZD
Retailer 10$1,384 NZD
Retailer 2$1,398 NZD
Retailer 6$1,504 NZD
Retailer 7$1,589 NZD
Retailer 5$2,910 NZD
Retailer 3$2,997 NZD
Retailer 11$3,116 NZD
Retailer 13$3,336 NZD
Retailer 9$3,360 NZD
Brilliant Earth$6,387 NZD

39 data points across 13 retailers

13 retailers$825 NZD to $6,387 NZD

A
Cheapest Retailer
-
$825 NZD
$465 USD
Final sale: no returns
A
Retailer 2
-
$914 NZD
$515 USD
View
A
Retailer 3
-
$999 NZD
HK$4,400 HKD
View
A
Retailer 4
-
$1,384 NZD
$780 USD
View
B+
Retailer 5
-
$1,398 NZD
$788 USD
View
A
Retailer 6
-
$1,504 NZD
£667 GBP
View
A
Retailer 7
-
$1,589 NZD
€853 EUR
View
B+
Retailer 8
-
$2,910 NZD
SGD 2,216 SGD
View
B+
Retailer 9
-
$2,997 NZD
$1,689 USD
View
B+
Retailer 10
-
$3,116 NZD
$1,756 USD
View
B+
Retailer 11
-
$3,336 NZD
$1,880 USD
View
B+
Retailer 12
-
$3,360 NZD
£1,491 GBP
View
Most Expensive
B
Brilliant Earth
16422264A · Oct 31
$6,387 NZD
$3,600 USD
View
12 more retailers have this diamond
Prices start from $825 NZDSave up to $5,562 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
3.28ct Cushion
$825 NZD