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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 $6,771 AUD
$4,756 USD
As of October 30, 2026
Save $18,197 AUD (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $24,967 AUD 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 17 retailers as of October 30, 2026, with prices from $6,771 to $24,967, a $18,197 spread on the same certified stone. Taylor and Hart lists it at $24,967. 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: $8,364 AUD|Low: $3,660 AUD|High: $24,967 AUD|Avg: $10,745 AUD
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
Retailer 16
Taylor and Hart
October 31, 2026
Retailer 8$5,310 AUD
Retailer 13$6,771 AUD
Retailer 4$7,082 AUD
Retailer 1$8,364 AUD
Retailer 9$9,078 AUD
Retailer 16$9,850 AUD
Retailer 5$10,734 AUD
Retailer 7$10,814 AUD
Retailer 11$11,452 AUD
Retailer 15$12,132 AUD
Retailer 2$12,637 AUD
Retailer 10$14,246 AUD
Retailer 12$14,598 AUD
Retailer 3$18,767 AUD
Retailer 14$19,483 AUD
Retailer 6$20,884 AUD
Taylor and Hart$24,967 AUD

39 data points across 17 retailers

17 retailers$6,771 AUD to $24,967 AUD

Retailer 1
-
$5,310 AUD
$3,730 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$6,771 AUD
$4,756 USD
View
Final sale: no returns
A
Retailer 3
-
$7,082 AUD
$4,975 USD
View
A
Retailer 4
-
$8,364 AUD
$5,875 USD
View
A
Retailer 5
-
$9,078 AUD
£5,021 GBP
View
A
Retailer 6
-
$9,850 AUD
£5,448 GBP
View
A
Retailer 7
-
$10,734 AUD
$7,540 USD
View
Retailer 8
-
$10,814 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$11,452 AUD
€7,661 EUR
View
A
Retailer 10
-
$12,132 AUD
$8,522 USD
View
A
Retailer 11
-
$12,637 AUD
$8,877 USD
View
A
Retailer 12
-
$14,246 AUD
ZAR 161,667 ZAR
View
A
Retailer 13
-
$14,598 AUD
£8,074 GBP
View
A
Retailer 14
-
$18,767 AUD
$13,183 USD
View
B+
Retailer 15
-
$19,483 AUD
$13,685 USD
View
B+
Retailer 16
-
$20,884 AUD
$14,670 USD
View
Most Expensive
B+
Taylor and Hart
DURVXYQ · Oct 30
$24,967 AUD
$17,538 USD
View
16 more retailers have this diamond
Prices start from $6,771 AUDSave up to $18,197 AUD

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
$6,771 AUD