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Cushion|Lab Grown|IGI

5.02ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG678556778

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG678556778

Diamond specifications and retailer prices

From $8,439 NZD
$4,756 USD
As of October 30, 2026
Save $22,679 NZD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $31,118 NZD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.02ct lab-grown cushion diamond

This 5.02ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG678556778 or 678556778. Listed at 16 retailers as of October 30, 2026, with prices from $8,439 to $31,118, a $22,679 spread on the same certified stone. Taylor and Hart lists it at $31,118. 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

5.02
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678556778
Dimensions9.83 × 9.83 × 6.36 mm
L/W Ratio1.00
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
9.83 mm9.83 mm5.02 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678556778
Side View
Table 63.0%Crown 36.2°Girdle: STK-VTKPavilion 38.7°Culet: NoneDepth 64.7%

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 30
Current: $11,314 NZD|Low: $4,562 NZD|High: $31,118 NZD|Avg: $13,266 NZD|+28.3%
Retailer 1
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
Taylor and Hart
October 30, 2026
Retailer 7$6,618 NZD
Retailer 11$8,439 NZD
Retailer 3$8,827 NZD
Retailer 1$11,314 NZD
Retailer 14$12,276 NZD
Retailer 4$13,378 NZD
Retailer 6$13,477 NZD
Retailer 9$14,273 NZD
Retailer 13$15,121 NZD
Retailer 15$15,750 NZD
Retailer 8$17,756 NZD
Retailer 10$18,194 NZD
Retailer 2$23,391 NZD
Retailer 12$24,282 NZD
Retailer 5$26,029 NZD
Taylor and Hart$31,118 NZD

38 data points across 16 retailers

16 retailers$8,439 NZD to $31,118 NZD

Retailer 1
-
$6,618 NZD
$3,730 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$8,439 NZD
$4,756 USD
View
Final sale: no returns
A
Retailer 3
-
$8,827 NZD
$4,975 USD
View
A
Retailer 4
-
$11,314 NZD
£5,021 GBP
View
A
Retailer 5
-
$12,276 NZD
£5,448 GBP
View
A
Retailer 6
-
$13,378 NZD
$7,540 USD
View
Retailer 7
-
$13,477 NZD
A$11,686 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$14,273 NZD
€7,661 EUR
View
A
Retailer 9
-
$15,121 NZD
$8,522 USD
View
A
Retailer 10
-
$15,750 NZD
$8,877 USD
View
A
Retailer 11
-
$17,756 NZD
ZAR 161,667 ZAR
View
A
Retailer 12
-
$18,194 NZD
£8,074 GBP
View
A
Retailer 13
-
$23,391 NZD
$13,183 USD
View
B+
Retailer 14
-
$24,282 NZD
$13,685 USD
View
B+
Retailer 15
-
$26,029 NZD
$14,670 USD
View
Most Expensive
B+
Taylor and Hart
DURVXYQ · Oct 30
$31,118 NZD
$17,538 USD
View
15 more retailers have this diamond
Prices start from $8,439 NZDSave up to $22,679 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
5.02ct Cushion
$8,439 NZD