CaratHunter
Plans
Marquise|Lab Grown|IGI

1.78ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG788646744

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788646744

Diamond specifications and retailer prices

From €284 EUR
$319 USD
As of November 3, 2026
Save €1,463 EUR (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,747 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 LG788646744 or 788646744. Listed at 19 retailers as of November 2, 2026, with prices from €284 to €1,747, a €1,463 spread on the same certified stone. Brilliant Earth lists it at €1,747. 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 angle33.1°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788646744
Dimensions13.26 × 6.34 × 3.69 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.26 mm6.34 mm1.78 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788646744
Side View
Table 61.0%Crown 33.1°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 58.2%

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 3
Current: €1,747 EUR|Low: €284 EUR|High: €1,926 EUR|Avg: €887 EUR|-9.3%
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
Retailer 18
November 3, 2026
Retailer 2€284 EUR
Retailer 5€296 EUR
Retailer 6€428 EUR
Retailer 13€455 EUR
Retailer 4€545 EUR
Retailer 12€559 EUR
Retailer 8€586 EUR
Retailer 7€626 EUR
Retailer 9€746 EUR
Retailer 18€746 EUR
Retailer 17€971 EUR
Retailer 3€1,016 EUR
Retailer 11€1,060 EUR
Retailer 16€1,221 EUR
Retailer 15€1,267 EUR
Retailer 14€1,320 EUR
Retailer 10€1,591 EUR
Brilliant Earth€1,747 EUR

19 data points across 18 retailers

19 retailers€284 EUR to €1,747 EUR

A
Cheapest Retailer
-
€284 EUR
$319 USD
Final sale: no returns
A
Retailer 2
-
€296 EUR
$332 USD
View
B+
Retailer 3
-
€428 EUR
$480 USD
View
A
Retailer 4
-
€455 EUR
$510 USD
View
A
Retailer 5
-
€545 EUR
ZAR 9,878 ZAR
View
A
Retailer 6
-
€559 EUR
£493 GBP
View
A
Retailer 7
-
€586 EUR
View
A
Retailer 8
-
€626 EUR
$702 USD
View
B+
Retailer 9
-
€746 EUR
A$1,287 AUD
View
A
Retailer 10
-
€746 EUR
$837 USD
View
B
Retailer 11
-
€971 EUR
$1,089 USD
View
B+
Retailer 12
-
€1,016 EUR
SGD 1,540 SGD
View
B+
Retailer 13
-
€1,060 EUR
$1,189 USD
View
B
Retailer 14
-
€1,221 EUR
$1,370 USD
View
B
Retailer 15
-
€1,267 EUR
£1,119 GBP
View
B
Retailer 16
-
€1,320 EUR
$1,481 USD
View
Retailer 17
-
€1,326 EUR
A$2,288 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
€1,591 EUR
$1,785 USD
View
Most Expensive
B
Brilliant Earth
18729050A · Nov 2
€1,747 EUR
$1,960 USD
View
18 more retailers have this diamond
Prices start from €284 EURSave up to €1,463 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
€284 EUR