CaratHunter
Plans
Marquise|Lab Grown|IGI

4.18ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG704536646

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG704536646

Diamond specifications and retailer prices

From €502 EUR
$563 USD
As of November 2, 2026
Save €3,956 EUR (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,458 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown marquise diamond

This 4.18ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG704536646 or 704536646. Listed at 11 retailers as of November 2, 2026, with prices from €502 to €4,458, a €3,956 spread on the same certified stone. Do Amore Diamonds lists it at €4,458. 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

4.18
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704536646
Dimensions16.78 × 8.33 × 5.26 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.78 mm8.33 mm4.18 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704536646
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

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 2
Current: €4,458 EUR|Low: €502 EUR|High: €5,510 EUR|Avg: €1,945 EUR|-1.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 10€502 EUR
Retailer 8€562 EUR
Retailer 4€592 EUR
Retailer 2€740 EUR
Retailer 9€958 EUR
Retailer 7€1,543 EUR
Retailer 11€1,752 EUR
Retailer 3€1,806 EUR
Retailer 5€2,706 EUR
Retailer 6€3,085 EUR
Do Amore Diamonds€4,458 EUR

23 data points across 11 retailers

11 retailers€502 EUR to €4,458 EUR

A
Cheapest Retailer
-
€502 EUR
$563 USD
A
Retailer 2
-
€562 EUR
$630 USD
View
A
Retailer 3
-
€592 EUR
£523 GBP
View
A
Retailer 4
-
€740 EUR
$830 USD
View
B+
Retailer 5
-
€958 EUR
$1,075 USD
View
B+
Retailer 6
-
€1,543 EUR
$1,731 USD
View
B+
Retailer 7
-
€1,752 EUR
$1,965 USD
View
B+
Retailer 8
-
€1,806 EUR
$2,026 USD
View
B
Retailer 9
-
€2,706 EUR
£2,390 GBP
View
B
Retailer 10
-
€3,085 EUR
$3,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-02B568ED9 · Nov 2
€4,458 EUR
$5,000 USD
View
10 more retailers have this diamond
Prices start from €502 EURSave up to €3,956 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
4.18ct Marquise
€502 EUR