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Marquise|Lab Grown|IGI

4.05ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG851693153

Certificate IGI LG851693153

Diamond specifications and retailer prices

From $1,390 CAD
£782 GBP
As of October 30, 2026
Save $1,528 CAD (52%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,919 CAD at Taylor and Hart · As of October 29, 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 3 retailers as of October 29, 2026, with prices from $1,390 to $2,919, a $1,528 spread on the same certified stone. Taylor and Hart lists it at $2,919. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG851693153
Dimensions16.41 × 8.41 × 5.15 mm
L/W Ratio1.95
Top View
16.41 mm8.41 mm4.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851693153
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCuletDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,393 CAD|Low: $1,386 CAD|High: $2,919 CAD|Avg: $2,001 CAD
Retailer 1
Retailer 2
Taylor and Hart
October 30, 2026
Retailer 2$1,390 CAD
Retailer 1$1,393 CAD
Taylor and Hart$2,919 CAD

2 data points across 3 retailers

3 retailers$1,390 CAD to $2,919 CAD

B+
Cheapest Retailer
-
$1,390 CAD
£782 GBP
Retailer 2
-
$1,393 CAD
$995 USD
View
Most Expensive
B
Taylor and Hart
2MB7PKQ · Oct 29
$2,919 CAD
$2,085 USD
View
2 more retailers have this diamond
Prices start from $1,390 CADSave up to $1,528 CAD

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.

B+
4.05ct Marquise
$1,390 CAD