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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 €4,257 EUR
$4,756 USD
As of October 30, 2026
Save €11,441 EUR (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €15,698 EUR 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 €4,257 to €15,698, a €11,441 spread on the same certified stone. Taylor and Hart lists it at €15,698. 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: €5,259 EUR|Low: €2,301 EUR|High: €15,698 EUR|Avg: €6,766 EUR
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€3,339 EUR
Retailer 13€4,257 EUR
Retailer 4€4,453 EUR
Retailer 1€5,259 EUR
Retailer 9€5,708 EUR
Retailer 16€6,193 EUR
Retailer 5€6,749 EUR
Retailer 7€6,799 EUR
Retailer 11€7,200 EUR
Retailer 15€7,628 EUR
Retailer 2€7,946 EUR
Retailer 10€8,957 EUR
Retailer 12€9,178 EUR
Retailer 3€11,800 EUR
Retailer 14€12,250 EUR
Retailer 6€13,131 EUR
Taylor and Hart€15,698 EUR

38 data points across 17 retailers

17 retailers€4,257 EUR to €15,698 EUR

Retailer 1
-
€3,339 EUR
$3,730 USD
Price last confirmed 21 days ago
A
Retailer 2
-
€4,257 EUR
$4,756 USD
View
Final sale: no returns
A
Retailer 3
-
€4,453 EUR
$4,975 USD
View
A
Retailer 4
-
€5,259 EUR
$5,875 USD
View
A
Retailer 5
-
€5,708 EUR
£5,021 GBP
View
A
Retailer 6
-
€6,193 EUR
£5,448 GBP
View
A
Retailer 7
-
€6,749 EUR
$7,540 USD
View
Retailer 8
-
€6,799 EUR
A$11,686 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
€7,200 EUR
View
A
Retailer 10
-
€7,628 EUR
$8,522 USD
View
A
Retailer 11
-
€7,946 EUR
$8,877 USD
View
A
Retailer 12
-
€8,957 EUR
ZAR 161,667 ZAR
View
A
Retailer 13
-
€9,178 EUR
£8,074 GBP
View
A
Retailer 14
-
€11,800 EUR
$13,183 USD
View
B+
Retailer 15
-
€12,250 EUR
$13,685 USD
View
B+
Retailer 16
-
€13,131 EUR
$14,670 USD
View
Most Expensive
B+
Taylor and Hart
DURVXYQ · Oct 30
€15,698 EUR
$17,538 USD
View
16 more retailers have this diamond
Prices start from €4,257 EURSave up to €11,441 EUR

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
€4,257 EUR