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Marquise|Lab Grown|IGI

1.51ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG838632342

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838632342

Diamond specifications and retailer prices

From €422 EUR
$473 USD
As of November 1, 2026
Save €578 EUR (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,000 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG838632342 or 838632342. Listed at 7 retailers as of October 26, 2026, with prices from €422 to €1,000, a €578 spread on the same certified stone. MOH London lists it at €1,000. 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

1.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838632342
Dimensions12.30 × 5.87 × 3.76 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.30 mm5.87 mm1.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838632342
Side View
Table 56.0%Crown 35.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.1%

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 1
Current: €1,000 EUR|Low: €405 EUR|High: €1,020 EUR|Avg: €670 EUR|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3€422 EUR
Retailer 6€447 EUR
Retailer 2€458 EUR
Retailer 5€541 EUR
Retailer 4€844 EUR
Retailer 7€954 EUR
MOH London€1,000 EUR

40 data points across 7 retailers

7 retailers€422 EUR to €1,000 EUR

A
Cheapest Retailer
-
€422 EUR
$473 USD
A
Retailer 2
-
€447 EUR
$501 USD
View
A
Retailer 3
-
€458 EUR
£405 GBP
View
B+
Retailer 4
-
€541 EUR
$607 USD
View
B
Retailer 5
-
€844 EUR
$947 USD
View
B
Retailer 6
-
€954 EUR
$1,070 USD
View
Most Expensive
B
MOH London
LG838632342 · Oct 26
€1,000 EUR
£883 GBP
View
6 more retailers have this diamond
Prices start from €422 EURSave up to €578 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
1.51ct Marquise
€422 EUR