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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG840631245

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840631245

Diamond specifications and retailer prices

From €276 EUR
$310 USD
As of November 2, 2026
Save €1,101 EUR (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,378 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 LG840631245 or 840631245. Listed at 18 retailers as of November 1, 2026, with prices from €276 to €1,378, a €1,101 spread on the same certified stone. Reve Diamonds lists it at €1,378. 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 angle34.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840631245
Dimensions13.14 × 6.18 × 3.82 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.14 mm6.18 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840631245
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €1,054 EUR|Low: €274 EUR|High: €1,418 EUR|Avg: €705 EUR|+2.2%
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
Retailer 17
Retailer 18
Reve Diamonds
November 2, 2026
Retailer 12€276 EUR
Retailer 6€309 EUR
Retailer 9€340 EUR
Retailer 18€343 EUR
Retailer 11€401 EUR
Retailer 16€462 EUR
Retailer 17€481 EUR
Retailer 14€591 EUR
Retailer 10€593 EUR
Retailer 13€610 EUR
Retailer 3€631 EUR
Retailer 7€792 EUR
Retailer 8€982 EUR
Retailer 1€1,054 EUR
Retailer 2€1,102 EUR
Retailer 5€1,144 EUR
Retailer 4€1,318 EUR
Retailer 15€1,375 EUR
Reve Diamonds€1,378 EUR

28 data points across 19 retailers

18 retailers€276 EUR to €1,378 EUR

A
Cheapest Retailer
-
€276 EUR
$310 USD
A
Retailer 2
-
€309 EUR
$347 USD
View
Final sale: no returns
Retailer 3
-
€340 EUR
$381 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€343 EUR
$385 USD
View
A
Retailer 5
-
€401 EUR
£354 GBP
View
B+
Retailer 6
-
€462 EUR
$518 USD
View
A
Retailer 7
-
€481 EUR
$540 USD
View
A
Retailer 8
-
€591 EUR
ZAR 10,714 ZAR
View
A
Retailer 9
-
€610 EUR
£539 GBP
View
A
Retailer 10
-
€631 EUR
$708 USD
View
A
Retailer 11
-
€792 EUR
A$1,367 AUD
View
Retailer 12
-
€982 EUR
A$1,694 AUD
View
Price last confirmed 7 days ago
B
Retailer 13
-
€1,054 EUR
$1,182 USD
View
B+
Retailer 14
-
€1,102 EUR
$1,236 USD
View
B+
Retailer 15
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€1,144 EUR
$1,283 USD
View
B
Retailer 16
-
€1,318 EUR
$1,478 USD
View
B
Retailer 17
-
€1,375 EUR
£1,214 GBP
View
Most Expensive
B
Reve Diamonds
8EE645827 · Nov 1
€1,378 EUR
$1,545 USD
View
17 more retailers have this diamond
Prices start from €276 EURSave up to €1,101 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
€276 EUR