CaratHunter
Plans
Marquise|Lab Grown|IGI

1.78ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG762550421

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762550421

Diamond specifications and retailer prices

From €234 EUR
$262 USD
As of November 2, 2026
Save €1,487 EUR (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,721 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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG762550421 or 762550421. Listed at 11 retailers as of November 2, 2026, with prices from €234 to €1,721, a €1,487 spread on the same certified stone. Brilliant Earth lists it at €1,721. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
F
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762550421
Dimensions13.28 × 6.32 × 3.67 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.28 mm6.32 mm1.78 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762550421
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 58.1%

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: €1,721 EUR|Low: €234 EUR|High: €2,024 EUR|Avg: €807 EUR|-15.0%
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
November 3, 2026
Retailer 11€234 EUR
Retailer 12€271 EUR
Retailer 9€309 EUR
Retailer 6€399 EUR
Retailer 3€401 EUR
Retailer 15€401 EUR
Retailer 16€537 EUR
Retailer 7€650 EUR
Retailer 2€684 EUR
Retailer 5€753 EUR
Retailer 10€889 EUR
Retailer 14€931 EUR
Retailer 4€1,134 EUR
Retailer 13€1,159 EUR
Retailer 8€1,662 EUR
Brilliant Earth€1,721 EUR

35 data points across 16 retailers

11 retailers€234 EUR to €1,721 EUR

A
Cheapest Retailer
-
€234 EUR
$262 USD
A
Retailer 2
-
€271 EUR
$304 USD
View
A
Retailer 3
-
€309 EUR
£273 GBP
View
B+
Retailer 4
-
€401 EUR
$450 USD
View
A
Retailer 5
-
€401 EUR
$450 USD
View
A
Retailer 6
-
€537 EUR
View
Price last confirmed 7 days ago
A
Retailer 7
-
€684 EUR
A$1,181 AUD
View
B+
Retailer 8
-
€889 EUR
$997 USD
View
B+
Retailer 9
-
€931 EUR
$1,044 USD
View
B+
Retailer 10
-
€1,159 EUR
£1,024 GBP
View
Most Expensive
B
Brilliant Earth
18247344A · Nov 2
€1,721 EUR
$1,930 USD
View
10 more retailers have this diamond
Prices start from €234 EURSave up to €1,487 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
€234 EUR