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Cushion|Lab Grown|IGI

5.90ct F SI1 Cushion Lab Grown Diamond

EX • F/SI1 • IGI LG768681085

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

Certificate IGI LG768681085

Diamond specifications and retailer prices

From €1,178 EUR
$1,321 USD
As of November 2, 2026
Save €1,865 EUR (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €3,043 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 5.9ct lab-grown cushion diamond

This 5.9ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG768681085 or 768681085. Listed at 7 retailers as of November 1, 2026, with prices from €1,178 to €3,043, a €1,865 spread on the same certified stone. MOH London lists it at €3,043. 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

5.90
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768681085
Dimensions10.36 × 10.15 × 6.27 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm10.15 mm5.90 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768681085
Side View
Table 60.0%Crown 33°Girdle: THK-VTKPavilion 31.2°Culet: NoneDepth 61.8%

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: Nov 2
Current: €3,043 EUR|Low: €923 EUR|High: €3,082 EUR|Avg: €1,636 EUR|+1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5€1,178 EUR
Retailer 3€1,235 EUR
Retailer 7€1,266 EUR
Retailer 2€1,301 EUR
Retailer 6€1,312 EUR
Retailer 4€2,307 EUR
MOH London€3,043 EUR

41 data points across 7 retailers

7 retailers€1,178 EUR to €3,043 EUR

A
Cheapest Retailer
-
€1,178 EUR
$1,321 USD
A
Retailer 2
-
€1,235 EUR
£1,090 GBP
View
B+
Retailer 3
-
€1,266 EUR
$1,420 USD
View
B+
Retailer 4
-
€1,301 EUR
View
B+
Retailer 5
-
€1,312 EUR
$1,471 USD
View
B
Retailer 6
-
€2,307 EUR
$2,587 USD
View
Most Expensive
B
MOH London
LG768681085 · Nov 1
€3,043 EUR
£2,687 GBP
View
6 more retailers have this diamond
Prices start from €1,178 EURSave up to €1,865 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
5.90ct Cushion
€1,178 EUR