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Cushion|Lab Grown|IGI

5.12ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG756590887

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

Certificate IGI LG756590887

Diamond specifications and retailer prices

From €983 EUR
$1,098 USD
As of October 31, 2026
Save €6,813 EUR (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €7,796 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.12ct lab-grown cushion diamond

This 5.12ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG756590887 or 756590887. Listed at 10 retailers as of October 31, 2026, with prices from €983 to €7,796, a €6,813 spread on the same certified stone. Do Amore Diamonds lists it at €7,796. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.12
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756590887
Dimensions9.88 × 9.79 × 6.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.88 mm9.79 mm5.12 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756590887
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 67.6%

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 31
Current: €1,629 EUR|Low: €701 EUR|High: €7,796 EUR|Avg: €1,720 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7€983 EUR
Retailer 5€1,019 EUR
Retailer 3€1,226 EUR
Retailer 6€1,398 EUR
Retailer 4€1,435 EUR
Retailer 8€1,523 EUR
Retailer 1€1,629 EUR
Retailer 2€3,818 EUR

42 data points across 8 retailers

10 retailers€983 EUR to €7,796 EUR

A
Cheapest Retailer
-
€983 EUR
$1,098 USD
Final sale: no returns
Retailer 2
-
€1,019 EUR
$1,138 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
€1,226 EUR
$1,370 USD
View
B+
Retailer 4
-
€1,398 EUR
$1,562 USD
View
A
Retailer 5
-
€1,435 EUR
$1,603 USD
View
B+
Retailer 6
-
€1,523 EUR
$1,701 USD
View
B+
Retailer 7
-
€1,629 EUR
£1,433 GBP
View
B
Retailer 8
-
€3,818 EUR
£3,359 GBP
View
B
Retailer 9
-
€3,998 EUR
$4,466 USD
View
Most Expensive
B
Do Amore Diamonds
27-5414AD7CC · Oct 31
€7,796 EUR
$8,710 USD
View
9 more retailers have this diamond
Prices start from €983 EURSave up to €6,813 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
5.12ct Cushion
€983 EUR