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Cushion|Lab Grown|IGI

5.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG838637523

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

Certificate IGI LG838637523

Diamond specifications and retailer prices

From €632 EUR
$706 USD
As of November 1, 2026
Save €4,748 EUR (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,379 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.05ct lab-grown cushion diamond

This 5.05ct 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 LG838637523 or 838637523. Listed at 11 retailers as of October 31, 2026, with prices from €632 to €5,379, a €4,748 spread on the same certified stone. Brilliant Earth lists it at €5,379. 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

5.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838637523
Dimensions10.06 × 9.83 × 6.45 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.06 mm9.83 mm5.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838637523
Side View
Table 63.0%Crown 36.1°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €5,379 EUR|Low: €632 EUR|High: €6,659 EUR|Avg: €2,087 EUR|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9€632 EUR
Retailer 4€732 EUR
Retailer 7€761 EUR
Retailer 3€839 EUR
Retailer 5€1,087 EUR
Retailer 2€1,143 EUR
Retailer 10€1,188 EUR
Retailer 8€1,429 EUR
Retailer 11€2,258 EUR
Retailer 6€2,757 EUR
Brilliant Earth€5,379 EUR

30 data points across 11 retailers

11 retailers€632 EUR to €5,379 EUR

A
Cheapest Retailer
-
€632 EUR
$706 USD
Final sale: no returns
A
Retailer 2
-
€732 EUR
£644 GBP
View
A
Retailer 3
-
€761 EUR
$850 USD
View
B+
Retailer 4
-
€839 EUR
$937 USD
View
B+
Retailer 5
-
€1,087 EUR
£957 GBP
View
B+
Retailer 6
-
€1,143 EUR
View
B+
Retailer 7
-
€1,188 EUR
$1,327 USD
View
B+
Retailer 8
-
€1,429 EUR
$1,596 USD
View
B
Retailer 9
-
€2,258 EUR
$2,523 USD
View
B
Retailer 10
-
€2,757 EUR
£2,425 GBP
View
Most Expensive
B
Brilliant Earth
21684254A · Oct 31
€5,379 EUR
$6,010 USD
View
10 more retailers have this diamond
Prices start from €632 EURSave up to €4,748 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
5.05ct Cushion
€632 EUR