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Marquise|Lab Grown|IGI

1.66ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG717581139

Shape and cutting style on the report: Marquise modified brilliant

Certificate IGI LG717581139

Diamond specifications and retailer prices

From €651 EUR
$730 USD
As of November 2, 2026
Save €1,899 EUR (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €3,139 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.66ct lab-grown marquise diamond

This 1.66ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG717581139 or 717581139. Listed at 14 retailers as of November 1, 2026, with a 292% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717581139
Dimensions15.09 × 5.36 × 3.23 mm
L/W Ratio2.82
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.09 mm5.36 mm1.66 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717581139
Side View
Table 59.0%Crown 31.8°Girdle: STK-THKPavilion 42.3°Culet: LargeDepth 60.3%

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: €3,139 EUR|Low: €624 EUR|High: €5,777 EUR|Avg: €1,369 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7€651 EUR
Retailer 11€708 EUR
Retailer 3€728 EUR
Retailer 8€754 EUR
Retailer 12€754 EUR
Retailer 5€914 EUR
Retailer 4€1,040 EUR
Retailer 6€1,065 EUR
Retailer 2€1,278 EUR
Retailer 10€2,342 EUR
Retailer 9€2,550 EUR
MOH London€3,139 EUR

42 data points across 12 retailers

14 retailers€651 EUR to €2,550 EUR

A
Cheapest Retailer
-
€651 EUR
$730 USD
A
Retailer 2
-
€708 EUR
$794 USD
View
A
Retailer 3
-
€728 EUR
$817 USD
View
Final sale: no returns
B+
Retailer 4
-
€754 EUR
$846 USD
View
Retailer 5
-
€754 EUR
$846 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
€914 EUR
$1,025 USD
View
B
Retailer 7
-
€1,040 EUR
$1,166 USD
View
B+
Retailer 8
-
€1,065 EUR
$1,194 USD
View
B+
Retailer 9
-
€1,106 EUR
$1,240 USD
View
B
Retailer 10
-
€1,278 EUR
£1,129 GBP
View
B
Retailer 11
-
€2,342 EUR
$2,627 USD
View
B
Retailer 12
-
€2,550 EUR
$2,860 USD
View
Most Expensive
MOH London
LG717581139 · Oct 29
€3,139 EUR
£2,772 GBP
View
Price under review
12 more retailers have this diamond
Prices start from €651 EURSave up to €1,899 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
1.66ct Marquise
€651 EUR