CaratHunter
Plans
Marquise|Lab Grown|IGI

4.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG817696109

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817696109

Diamond specifications and retailer prices

From €3,230 EUR
$3,609 USD
As of October 29, 2026
Save €9,125 EUR (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €13,465 EUR at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817696109 or 817696109. Listed at 17 retailers as of October 29, 2026, with a 282% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817696109
Dimensions16.31 × 8.38 × 5.01 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
16.31 mm8.38 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817696109
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 29
Current: €4,709 EUR|Low: €3,230 EUR|High: €12,708 EUR|Avg: €6,674 EUR|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 15€3,230 EUR
Retailer 9€3,357 EUR
Retailer 2€3,486 EUR
Retailer 11€4,450 EUR
Retailer 1€4,709 EUR
Retailer 7€4,842 EUR
Retailer 13€5,208 EUR
Retailer 3€5,797 EUR
Retailer 16€6,117 EUR
Retailer 14€7,121 EUR
Retailer 8€7,308 EUR
Retailer 5€8,010 EUR
Retailer 4€8,527 EUR
Retailer 6€11,281 EUR
Retailer 12€11,703 EUR
Retailer 10€12,355 EUR

18 data points across 16 retailers

17 retailers€3,230 EUR to €12,355 EUR

A+
Cheapest Retailer
-
€3,230 EUR
$3,609 USD
Final sale: no returns
A
Retailer 2
-
€3,357 EUR
$3,750 USD
View
A
Retailer 3
-
€3,486 EUR
$3,895 USD
View
A
Retailer 4
-
€4,450 EUR
£3,915 GBP
View
A
Retailer 5
-
€4,709 EUR
$5,261 USD
View
A
Retailer 6
-
€4,842 EUR
$5,410 USD
View
A
Retailer 7
-
€5,208 EUR
$5,818 USD
View
A
Retailer 8
-
€5,797 EUR
£5,100 GBP
View
A
Retailer 9
-
€6,117 EUR
View
A
Retailer 10
-
€7,121 EUR
ZAR 128,519 ZAR
View
Retailer 11
-
€7,308 EUR
A$12,560 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
€8,010 EUR
$8,949 USD
View
A
Retailer 13
-
€8,527 EUR
£7,501 GBP
View
A
Retailer 14
-
€11,281 EUR
SGD 17,032 SGD
View
B+
Retailer 15
-
€11,703 EUR
$13,075 USD
View
B+
Retailer 16
-
€12,355 EUR
$13,803 USD
View
Most Expensive
Novita Diamonds
cert_817696109 · Oct 8
€13,465 EUR
A$23,144 AUD
View
Price last confirmed 22 days ago
16 more retailers have this diamond
Prices start from €3,230 EURSave up to €9,125 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
€3,230 EUR