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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG847640520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847640520

Diamond specifications and retailer prices

From €238 EUR
$267 USD
As of November 2, 2026
Save €1,037 EUR (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,275 EUR at With Clarity · As of November 1, 2026
View at With Clarity

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG847640520 or 847640520. Listed at 12 retailers as of November 1, 2026, with prices from €238 to €1,275, a €1,037 spread on the same certified stone. With Clarity lists it at €1,275. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847640520
Dimensions12.53 × 6.32 × 3.95 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm6.32 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847640520
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.5%

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: €345 EUR|Low: €238 EUR|High: €1,275 EUR|Avg: €728 EUR|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 2, 2026
Retailer 11€238 EUR
Retailer 9€276 EUR
Retailer 1€345 EUR
Retailer 5€437 EUR
Retailer 2€486 EUR
Retailer 3€605 EUR
Retailer 10€687 EUR
Retailer 4€908 EUR
Retailer 7€950 EUR
Retailer 8€1,083 EUR
Retailer 6€1,190 EUR
With Clarity€1,275 EUR

10 data points across 12 retailers

12 retailers€238 EUR to €1,275 EUR

A
Cheapest Retailer
-
€238 EUR
$267 USD
A
Retailer 2
-
€276 EUR
$310 USD
View
A
Retailer 3
-
€345 EUR
£305 GBP
View
A
Retailer 4
-
€437 EUR
$490 USD
View
Retailer 5
-
€486 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€605 EUR
$679 USD
View
A
Retailer 7
-
€687 EUR
A$1,185 AUD
View
B+
Retailer 8
-
€908 EUR
$1,018 USD
View
B+
Retailer 9
-
€950 EUR
$1,065 USD
View
B
Retailer 10
-
€1,083 EUR
$1,215 USD
View
B
Retailer 11
-
€1,190 EUR
£1,051 GBP
View
Most Expensive
B
With Clarity
847640520 · Nov 1
€1,275 EUR
$1,430 USD
View
11 more retailers have this diamond
Prices start from €238 EURSave up to €1,037 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
1.78ct Marquise
€238 EUR