CaratHunter
Plans
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 €629 EUR
$706 USD
As of November 1, 2026
Save €4,729 EUR (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,358 EUR at Brilliant Earth · As of November 2, 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 November 1, 2026, with prices from €629 to €5,358, a €4,729 spread on the same certified stone. Brilliant Earth lists it at €5,358. 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
Colour
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: €5,358 EUR|Low: €629 EUR|High: €6,633 EUR|Avg: €2,057 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 3, 2026
Retailer 9€629 EUR
Retailer 5€729 EUR
Retailer 7€758 EUR
Retailer 3€835 EUR
Retailer 2€1,092 EUR
Retailer 4€1,138 EUR
Retailer 10€1,183 EUR
Retailer 8€1,423 EUR
Retailer 11€2,250 EUR
Retailer 6€2,746 EUR
Brilliant Earth€5,358 EUR

31 data points across 11 retailers

11 retailers€629 EUR to €5,358 EUR

A
Cheapest Retailer
-
€629 EUR
$706 USD
Final sale: no returns
A
Retailer 2
-
€729 EUR
£644 GBP
View
A
Retailer 3
-
€758 EUR
$850 USD
View
B+
Retailer 4
-
€835 EUR
$937 USD
View
B+
Retailer 5
-
€1,092 EUR
£965 GBP
View
B+
Retailer 6
-
€1,138 EUR
View
B+
Retailer 7
-
€1,183 EUR
$1,327 USD
View
B+
Retailer 8
-
€1,423 EUR
$1,596 USD
View
B
Retailer 9
-
€2,250 EUR
$2,523 USD
View
B
Retailer 10
-
€2,746 EUR
£2,425 GBP
View
Most Expensive
B
Brilliant Earth
21684254A · Nov 2
€5,358 EUR
$6,010 USD
View
10 more retailers have this diamond
Prices start from €629 EURSave up to €4,729 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
€629 EUR