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Marquise|Lab Grown|IGI

1.78ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG838632478

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838632478

Diamond specifications and retailer prices

From €435 EUR
$486 USD
As of October 30, 2026
Save €1,668 EUR (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €2,103 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838632478 or 838632478. Listed at 7 retailers as of October 30, 2026, with prices from €435 to €2,103, a €1,668 spread on the same certified stone. Do Amore Diamonds lists it at €2,103. 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
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838632478
Dimensions12.38 × 6.34 × 3.96 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.38 mm6.34 mm1.78 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838632478
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.5%

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: Oct 30
Current: €2,103 EUR|Low: €435 EUR|High: €2,103 EUR|Avg: €1,035 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5€435 EUR
Retailer 7€456 EUR
Retailer 2€636 EUR
Retailer 4€1,065 EUR
Retailer 6€1,299 EUR
Retailer 3€1,447 EUR
Do Amore Diamonds€2,103 EUR

27 data points across 7 retailers

7 retailers€435 EUR to €2,103 EUR

B+
Cheapest Retailer
-
€435 EUR
$486 USD
A
Retailer 2
-
€456 EUR
$510 USD
View
A
Retailer 3
-
€636 EUR
£560 GBP
View
B+
Retailer 4
-
€1,065 EUR
$1,190 USD
View
B
Retailer 5
-
€1,299 EUR
$1,451 USD
View
B
Retailer 6
-
€1,447 EUR
£1,273 GBP
View
Most Expensive
B
Do Amore Diamonds
36-2007084 · Oct 31
€2,103 EUR
$2,350 USD
View
6 more retailers have this diamond
Prices start from €435 EURSave up to €1,668 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
€435 EUR