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Marquise|Lab Grown|IGI

4.05ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG851693153

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851693153

Diamond specifications and retailer prices

From €882 EUR
£776 GBP
As of November 1, 2026
Save €985 EUR (53%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,867 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG851693153 or 851693153. Listed at 4 retailers as of October 31, 2026, with prices from €882 to €1,867, a €985 spread on the same certified stone. Taylor and Hart lists it at €1,867. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851693153
Dimensions16.41 × 8.41 × 5.15 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.41 mm8.41 mm4.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851693153
Side View
Table 60.0%Crown 33.7°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 61.2%

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 1
Current: €882 EUR|Low: €882 EUR|High: €1,867 EUR|Avg: €1,247 EUR|-0.5%
Retailer 1
Retailer 2
Retailer 3
Taylor and Hart
November 1, 2026
Retailer 1€882 EUR
Retailer 3€891 EUR
Retailer 2€1,262 EUR
Taylor and Hart€1,867 EUR

4 data points across 4 retailers

4 retailers€882 EUR to €1,867 EUR

A
Cheapest Retailer
-
€882 EUR
£776 GBP
B+
Retailer 2
-
€891 EUR
$995 USD
View
B+
Retailer 3
-
€1,262 EUR
$1,410 USD
View
Most Expensive
B
Taylor and Hart
2MB7PKQ · Oct 31
€1,867 EUR
$2,085 USD
View
3 more retailers have this diamond
Prices start from €882 EURSave up to €985 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
4.05ct Marquise
€882 EUR