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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG818682269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818682269

Diamond specifications and retailer prices

From €251 EUR
$282 USD
As of November 2, 2026
Save €1,061 EUR (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,312 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 LG818682269 or 818682269. Listed at 22 retailers as of November 1, 2026, with prices from €251 to €1,312, a €1,061 spread on the same certified stone. With Clarity lists it at €1,312. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682269
Dimensions11.88 × 6.26 × 3.97 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.88 mm6.26 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682269
Side View
Table 60.0%Crown 38.7°Girdle: STK-VTKPavilion 39.2°Culet: NoneDepth 63.4%

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: €818 EUR|Low: €251 EUR|High: €1,312 EUR|Avg: €683 EUR|-1.0%
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
Retailer 19
Retailer 20
With Clarity
November 2, 2026
Retailer 10€251 EUR
Retailer 11€281 EUR
Retailer 7€292 EUR
Retailer 4€312 EUR
Retailer 6€312 EUR
Retailer 12€364 EUR
Retailer 3€450 EUR
Retailer 20€514 EUR
Retailer 15€537 EUR
Retailer 14€545 EUR
Retailer 18€621 EUR
Retailer 8€621 EUR
Retailer 19€725 EUR
Retailer 1€818 EUR
Retailer 17€963 EUR
Retailer 13€1,000 EUR
Retailer 5€1,002 EUR
Retailer 9€1,047 EUR
Retailer 2€1,101 EUR
Retailer 16€1,249 EUR
With Clarity€1,312 EUR

25 data points across 21 retailers

22 retailers€251 EUR to €1,312 EUR

A
Cheapest Retailer
-
€251 EUR
$282 USD
A
Retailer 2
-
€281 EUR
$315 USD
View
Final sale: no returns
A
Retailer 3
-
€292 EUR
$327 USD
View
Retailer 4
-
€312 EUR
$350 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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€312 EUR
$350 USD
View
A
Retailer 6
-
€364 EUR
£322 GBP
View
A
Retailer 7
-
€450 EUR
$505 USD
View
A
Retailer 8
-
€514 EUR
$577 USD
View
A
Retailer 9
-
€537 EUR
ZAR 9,739 ZAR
View
A
Retailer 10
-
€545 EUR
£482 GBP
View
A
Retailer 11
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€621 EUR
$696 USD
View
A
Retailer 12
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€621 EUR
$697 USD
View
A
Retailer 13
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€725 EUR
A$1,251 AUD
View
B+
Retailer 14
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€818 EUR
$917 USD
View
B+
Retailer 15
-
€963 EUR
A$1,661 AUD
View
B+
Retailer 16
-
€1,000 EUR
SGD 1,516 SGD
View
B+
Retailer 17
-
€1,002 EUR
$1,124 USD
View
B+
Retailer 18
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€1,047 EUR
$1,174 USD
View
B+
Retailer 19
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€1,101 EUR
$1,235 USD
View
B+
Retailer 20
-
€1,199 EUR
$1,345 USD
View
B+
Retailer 21
-
€1,249 EUR
£1,103 GBP
View
Most Expensive
B
With Clarity
818682269 · Nov 1
€1,312 EUR
$1,472 USD
View
21 more retailers have this diamond
Prices start from €251 EURSave up to €1,061 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
€251 EUR