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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG762573614

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762573614

Diamond specifications and retailer prices

From €255 EUR
$286 USD
As of November 2, 2026
Save €1,154 EUR (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,409 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 LG762573614 or 762573614. Listed at 22 retailers as of November 2, 2026, with prices from €255 to €1,409, a €1,154 spread on the same certified stone. Brilliant Earth lists it at €1,409. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762573614
Dimensions12.87 × 6.36 × 3.84 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.87 mm6.36 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762573614
Side View
Table 59.0%Crown 32.2°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 60.4%

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: €1,409 EUR|Low: €245 EUR|High: €1,489 EUR|Avg: €703 EUR|-5.4%
Brilliant Earth
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
November 2, 2026
Retailer 17€255 EUR
Retailer 7€296 EUR
Retailer 3€317 EUR
Retailer 8€317 EUR
Retailer 4€371 EUR
Retailer 15€455 EUR
Retailer 10€545 EUR
Retailer 2€554 EUR
Retailer 16€563 EUR
Retailer 13€578 EUR
Retailer 14€735 EUR
Retailer 11€963 EUR
Retailer 6€971 EUR
Retailer 5€1,016 EUR
Retailer 9€1,216 EUR
Retailer 12€1,274 EUR
Brilliant Earth€1,409 EUR

35 data points across 17 retailers

22 retailers€255 EUR to €1,409 EUR

A
Cheapest Retailer
-
€255 EUR
$286 USD
A
Retailer 2
-
€296 EUR
$332 USD
View
Retailer 3
-
€317 EUR
$355 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€317 EUR
$355 USD
View
Retailer 5
-
€371 EUR
£328 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
€426 EUR
$478 USD
View
A
Retailer 7
-
€455 EUR
$510 USD
View
A
Retailer 8
-
€545 EUR
ZAR 9,878 ZAR
View
A
Retailer 9
-
€554 EUR
£489 GBP
View
Retailer 10
-
€563 EUR
View
Price last confirmed 8 days ago
A
Retailer 11
-
€578 EUR
A$998 AUD
View
A
Retailer 12
-
€622 EUR
$698 USD
View
A
Retailer 13
-
€625 EUR
$701 USD
View
A
Retailer 14
-
€735 EUR
A$1,269 AUD
View
B+
Retailer 15
-
€963 EUR
A$1,661 AUD
View
B+
Retailer 16
-
€971 EUR
$1,089 USD
View
B+
Retailer 17
-
€1,016 EUR
$1,140 USD
View
B+
Retailer 18
-
€1,060 EUR
$1,189 USD
View
B
Retailer 19
-
€1,216 EUR
$1,364 USD
View
B+
Retailer 20
-
€1,274 EUR
£1,125 GBP
View
B
Retailer 21
-
€1,320 EUR
$1,481 USD
View
Most Expensive
B
Brilliant Earth
20624835A · Nov 2
€1,409 EUR
$1,580 USD
View
21 more retailers have this diamond
Prices start from €255 EURSave up to €1,154 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
€255 EUR