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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 $4,756 USD
As of October 30, 2026
Save $12,782 USD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $17,538 USD 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 $4,756 to $17,538, a $12,782 spread on the same certified stone. Taylor and Hart lists it at $17,538. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,377 USD|Low: $2,571 USD|High: $17,538 USD|Avg: $7,477 USD|+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$3,730 USD
Retailer 11$4,756 USD
Retailer 3$4,975 USD
Retailer 1$6,377 USD
Retailer 14$6,919 USD
Retailer 4$7,540 USD
Retailer 6$7,596 USD
Retailer 9$8,044 USD
Retailer 13$8,522 USD
Retailer 15$8,877 USD
Retailer 8$10,007 USD
Retailer 10$10,254 USD
Retailer 2$13,183 USD
Retailer 12$13,685 USD
Retailer 5$14,670 USD
Taylor and Hart$17,538 USD

38 data points across 16 retailers

16 retailers$4,756 USD to $17,538 USD

Retailer 1
-
$3,730 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$4,756 USD
View
Final sale: no returns
A
Retailer 3
-
$4,975 USD
View
A
Retailer 4
-
$6,377 USD
£5,021 GBP
View
A
Retailer 5
-
$6,919 USD
£5,448 GBP
View
A
Retailer 6
-
$7,540 USD
View
Retailer 7
-
$7,596 USD
A$11,686 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$8,044 USD
€7,661 EUR
View
A
Retailer 9
-
$8,522 USD
View
A
Retailer 10
-
$8,877 USD
View
A
Retailer 11
-
$10,007 USD
ZAR 161,667 ZAR
View
A
Retailer 12
-
$10,254 USD
£8,074 GBP
View
A
Retailer 13
-
$13,183 USD
View
B+
Retailer 14
-
$13,685 USD
View
B+
Retailer 15
-
$14,670 USD
View
Most Expensive
B+
Taylor and Hart
DURVXYQ · Oct 30
$17,538 USD
View
15 more retailers have this diamond
Prices start from $4,756 USDSave up to $12,782 USD

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
$4,756 USD