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Cushion|Lab Grown|IGI

3.03ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG818640129

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG818640129

Diamond specifications and retailer prices

From $3,307 NZD
$1,864 USD
As of October 29, 2026
Save $14,418 NZD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $17,725 NZD at Brilliant Earth · As of October 30, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818640129 or 818640129. Listed at 22 retailers as of October 29, 2026, with prices from $3,307 to $17,725, a $14,418 spread on the same certified stone. Brilliant Earth lists it at $17,725. 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

3.03
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640129
Dimensions10.24 × 7.88 × 4.87 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeLarge
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
10.24 mm7.88 mm3.03 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640129
Side View
Table 61.0%Crown 36°Girdle: STK-THKPavilion 39.9°Culet: LargeDepth 61.8%

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: Oct 29
Current: $17,725 NZD|Low: $3,307 NZD|High: $17,725 NZD|Avg: $7,666 NZD|+21.2%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 4$3,307 NZD
Retailer 20$3,598 NZD
Retailer 16$3,703 NZD
Retailer 3$3,836 NZD
Retailer 9$3,836 NZD
Retailer 5$4,134 NZD
Retailer 6$4,429 NZD
Retailer 17$5,275 NZD
Retailer 7$5,486 NZD
Retailer 18$5,534 NZD
Retailer 11$5,740 NZD
Retailer 13$5,958 NZD
Retailer 22$7,191 NZD
Retailer 15$7,950 NZD
Retailer 21$8,679 NZD
Retailer 10$10,337 NZD
Retailer 19$11,017 NZD
Retailer 8$11,540 NZD
Retailer 14$12,817 NZD
Retailer 12$13,441 NZD
Retailer 2$13,511 NZD
Brilliant Earth$17,725 NZD

34 data points across 22 retailers

22 retailers$3,307 NZD to $17,725 NZD

A
Cheapest Retailer
-
$3,307 NZD
$1,864 USD
A
Retailer 2
-
$3,598 NZD
$2,028 USD
View
A
Retailer 3
-
$3,703 NZD
$2,087 USD
View
Final sale: no returns
Retailer 4
-
$3,836 NZD
$2,162 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$3,836 NZD
$2,162 USD
View
A
Retailer 6
-
$4,134 NZD
$2,330 USD
View
A
Retailer 7
-
$4,429 NZD
HK$19,500 HKD
View
A
Retailer 8
-
$5,275 NZD
£2,341 GBP
View
A
Retailer 9
-
$5,486 NZD
$3,092 USD
View
A
Retailer 10
-
$5,534 NZD
$3,119 USD
View
B+
Retailer 11
-
$5,740 NZD
$3,235 USD
View
A
Retailer 12
-
$5,958 NZD
€3,198 EUR
View
B+
Retailer 13
-
$7,191 NZD
$4,053 USD
View
B+
Retailer 14
-
$7,950 NZD
£3,528 GBP
View
Retailer 15
-
$8,679 NZD
A$7,525 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$10,337 NZD
$5,826 USD
View
B
Retailer 17
-
$11,017 NZD
£4,889 GBP
View
B
Retailer 18
-
$11,540 NZD
$6,504 USD
View
B
Retailer 19
-
$12,817 NZD
SGD 9,762 SGD
View
B
Retailer 20
-
$13,441 NZD
$7,575 USD
View
B
Retailer 21
-
$13,511 NZD
A$11,715 AUD
View
Most Expensive
C
Brilliant Earth
21191487A · Oct 30
$17,725 NZD
$9,990 USD
View
21 more retailers have this diamond
Prices start from $3,307 NZDSave up to $14,418 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
$3,307 NZD