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Cushion|Lab Grown|IGI

5.28ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG831644543

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG831644543

Diamond specifications and retailer prices

From €7,843 EUR
$8,762 USD
As of November 1, 2026
Save €32,694 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €40,537 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.28ct lab-grown cushion diamond

This 5.28ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831644543 or 831644543. Listed at 15 retailers as of October 31, 2026, with prices from €7,843 to €40,537, a €32,694 spread on the same certified stone. With Clarity lists it at €40,537. 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

5.28
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831644543
Dimensions10.22 × 9.82 × 6.58 mm
L/W Ratio1.04
Girdle conditionFaceted
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
10.22 mm9.82 mm5.28 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831644543
Side View
Table 63.0%Crown 40.8°Girdle: MED-THKPavilion 38°Culet: NoneDepth 67.0%

Caratlytics Score

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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: Nov 1
Current: €14,738 EUR|Low: €7,843 EUR|High: €40,537 EUR|Avg: €15,676 EUR|-1.2%
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
With Clarity
November 1, 2026
Retailer 3€7,843 EUR
Retailer 2€8,157 EUR
Retailer 11€8,396 EUR
Retailer 7€9,239 EUR
Retailer 12€9,626 EUR
Retailer 8€12,521 EUR
Retailer 9€13,525 EUR
Retailer 4€13,714 EUR
Retailer 1€14,738 EUR
Retailer 10€15,251 EUR
Retailer 5€20,587 EUR
Retailer 6€21,286 EUR
Retailer 13€25,353 EUR
With Clarity€40,537 EUR

22 data points across 14 retailers

15 retailers€7,843 EUR to €40,537 EUR

A
Cheapest Retailer
-
€7,843 EUR
$8,762 USD
A
Retailer 2
-
€8,157 EUR
HK$71,200 HKD
View
Retailer 3
-
€8,396 EUR
$9,380 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
€9,239 EUR
£8,128 GBP
View
A
Retailer 5
-
€9,626 EUR
$10,754 USD
View
A
Retailer 6
-
€12,521 EUR
View
A
Retailer 7
-
€13,525 EUR
$15,110 USD
View
B+
Retailer 8
-
€13,714 EUR
$15,321 USD
View
B+
Retailer 9
-
€14,738 EUR
£12,965 GBP
View
B+
Retailer 10
-
€15,251 EUR
ZAR 275,254 ZAR
View
B+
Retailer 11
-
€20,413 EUR
$22,805 USD
View
B+
Retailer 12
-
€20,587 EUR
$23,000 USD
View
B+
Retailer 13
-
€21,286 EUR
A$36,586 AUD
View
B
Retailer 14
-
€25,353 EUR
$28,325 USD
View
Most Expensive
B
With Clarity
831644543 · Oct 31
€40,537 EUR
$45,288 USD
View
14 more retailers have this diamond
Prices start from €7,843 EURSave up to €32,694 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
5.28ct Cushion
€7,843 EUR