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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 €239 EUR
$267 USD
As of November 2, 2026
Save €1,041 EUR (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,280 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 €239 to €1,280, a €1,041 spread on the same certified stone. With Clarity lists it at €1,280. 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
Color
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: €347 EUR|Low: €239 EUR|High: €1,280 EUR|Avg: €731 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€239 EUR
Retailer 9€277 EUR
Retailer 1€347 EUR
Retailer 5€439 EUR
Retailer 2€488 EUR
Retailer 3€608 EUR
Retailer 10€689 EUR
Retailer 4€911 EUR
Retailer 7€953 EUR
Retailer 8€1,088 EUR
Retailer 6€1,195 EUR
With Clarity€1,280 EUR

10 data points across 12 retailers

12 retailers€239 EUR to €1,280 EUR

A
Cheapest Retailer
-
€239 EUR
$267 USD
A
Retailer 2
-
€277 EUR
$310 USD
View
A
Retailer 3
-
€347 EUR
£305 GBP
View
A
Retailer 4
-
€439 EUR
$490 USD
View
Retailer 5
-
€488 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€608 EUR
$679 USD
View
A
Retailer 7
-
€689 EUR
A$1,185 AUD
View
B+
Retailer 8
-
€911 EUR
$1,018 USD
View
B+
Retailer 9
-
€953 EUR
$1,065 USD
View
B
Retailer 10
-
€1,088 EUR
$1,215 USD
View
B
Retailer 11
-
€1,195 EUR
£1,051 GBP
View
Most Expensive
B
With Clarity
847640520 · Nov 1
€1,280 EUR
$1,430 USD
View
11 more retailers have this diamond
Prices start from €239 EURSave up to €1,041 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
€239 EUR