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Cushion|Lab Grown|IGI

3.03ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG579395083

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG579395083

Diamond specifications and retailer prices

From $983 NZD
$554 USD
As of November 1, 2026
Save $7,445 NZD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,428 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct 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 LG579395083 or 579395083. Listed at 12 retailers as of October 31, 2026, with prices from $983 to $8,428, a $7,445 spread on the same certified stone. Brilliant Earth lists it at $8,428. 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

3.03
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579395083
Dimensions8.36 × 8.31 × 5.51 mm
L/W Ratio1.01
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
8.36 mm8.31 mm3.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579395083
Side View
Table 64.0%Crown 41.2°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 66.3%

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: Nov 1
Current: $8,428 NZD|Low: $983 NZD|High: $8,712 NZD|Avg: $2,713 NZD|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 4$983 NZD
Retailer 11$1,088 NZD
Retailer 7$1,171 NZD
Retailer 9$1,458 NZD
Retailer 12$1,609 NZD
Retailer 6$1,630 NZD
Retailer 5$1,810 NZD
Retailer 10$2,454 NZD
Retailer 3$2,748 NZD
Retailer 8$3,495 NZD
Retailer 2$4,543 NZD
Brilliant Earth$8,428 NZD

40 data points across 12 retailers

12 retailers$983 NZD to $8,428 NZD

A
Cheapest Retailer
-
$983 NZD
$554 USD
Final sale: no returns
Retailer 2
-
$1,088 NZD
$613 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,171 NZD
$660 USD
View
B+
Retailer 4
-
$1,458 NZD
$822 USD
View
A
Retailer 5
-
$1,609 NZD
$907 USD
View
A
Retailer 6
-
$1,630 NZD
€875 EUR
View
A
Retailer 7
-
$1,810 NZD
£803 GBP
View
B+
Retailer 8
-
$2,454 NZD
$1,383 USD
View
B+
Retailer 9
-
$2,748 NZD
$1,549 USD
View
B+
Retailer 10
-
$3,495 NZD
$1,970 USD
View
B
Retailer 11
-
$4,543 NZD
£2,016 GBP
View
Most Expensive
B
Brilliant Earth
16211350A · Oct 31
$8,428 NZD
$4,750 USD
View
11 more retailers have this diamond
Prices start from $983 NZDSave up to $7,445 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
3.03ct Cushion
$983 NZD