Marquise|Lab Grown|IGI

4.00ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG817609491

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG817609491

Diamond specifications and retailer prices

From €5,294 EUR
$5,915 USD
As of October 31, 2026
Save €26,007 EUR (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €31,301 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4ct lab-grown marquise diamond

This 4ct 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 LG817609491 or 817609491. Listed at 9 retailers as of October 31, 2026, with prices from €5,294 to €31,301, a €26,007 spread on the same certified stone. Do Amore Diamonds lists it at €31,301. 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

4.00
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817609491
Dimensions16.12 × 7.66 × 4.98 mm
L/W Ratio2.10
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.12 mm7.66 mm4.00 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817609491
Side View
Table 63.0%Crown 35.1°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 65.0%

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: Oct 31
Current: €31,301 EUR|Low: €2,197 EUR|High: €31,301 EUR|Avg: €8,413 EUR|+167.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5€5,294 EUR
Retailer 8€5,493 EUR
Retailer 9€6,332 EUR
Retailer 6€8,548 EUR
Retailer 3€11,919 EUR
Retailer 4€14,528 EUR
Retailer 2€18,310 EUR
Retailer 7€20,552 EUR
Do Amore Diamonds€31,301 EUR

25 data points across 9 retailers

9 retailers€5,294 EUR to €31,301 EUR

A
Cheapest Retailer
-
€5,294 EUR
$5,915 USD
A
Retailer 2
-
€5,493 EUR
$6,137 USD
View
Final sale: no returns
A
Retailer 3
-
€8,548 EUR
$9,550 USD
View
B+
Retailer 4
-
€11,919 EUR
£10,485 GBP
View
B+
Retailer 5
-
€14,528 EUR
$16,231 USD
View
B
Retailer 6
-
€18,310 EUR
£16,107 GBP
View
B
Retailer 7
-
€20,552 EUR
$22,961 USD
View
B
Retailer 8
-
€29,252 EUR
$32,680 USD
View
Most Expensive
B
Do Amore Diamonds
27-15C9351EE · Oct 31
€31,301 EUR
$34,970 USD
View
8 more retailers have this diamond
Prices start from €5,294 EURSave up to €26,007 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
4.00ct Marquise
€5,294 EUR