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Marquise|Lab Grown|IGI

1.63ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436046743

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436046743

Diamond specifications and retailer prices

From €1,003 EUR
$1,120 USD
As of October 31, 2026
Save €3,188 EUR (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,190 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.63ct lab-grown marquise diamond

This 1.63ct lab-grown marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046743 or 436046743. Listed at 11 retailers as of October 29, 2026, with prices from €1,003 to €4,190, a €3,188 spread on the same certified stone. MOH London lists it at €4,190. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.63
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046743
Dimensions11.29 × 6.18 × 3.96 mm
L/W Ratio1.83
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
11.29 mm6.18 mm1.63 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436046743
Side View
Table 57.5%Crown 35.7°Girdle: MED-THKPavilion 41.7°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: Oct 31
Current: €4,190 EUR|Low: €1,003 EUR|High: €4,224 EUR|Avg: €2,217 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2€1,003 EUR
Retailer 4€1,258 EUR
Retailer 7€1,409 EUR
Retailer 5€1,460 EUR
Retailer 8€1,611 EUR
Retailer 3€1,628 EUR
Retailer 10€1,995 EUR
Retailer 6€2,305 EUR
Retailer 9€2,649 EUR
Retailer 11€4,179 EUR
MOH London€4,190 EUR

14 data points across 11 retailers

11 retailers€1,003 EUR to €4,190 EUR

A
Cheapest Retailer
-
€1,003 EUR
$1,120 USD
B+
Retailer 2
-
€1,258 EUR
$1,406 USD
View
B+
Retailer 3
-
€1,369 EUR
$1,529 USD
View
B+
Retailer 4
-
€1,409 EUR
$1,574 USD
View
Final sale: no returns
Retailer 5
-
€1,460 EUR
$1,631 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,460 EUR
$1,631 USD
View
B
Retailer 7
-
€1,611 EUR
$1,800 USD
View
B
Retailer 8
-
€2,305 EUR
$2,575 USD
View
B
Retailer 9
-
€2,649 EUR
$2,959 USD
View
B
Retailer 10
-
€2,735 EUR
$3,056 USD
View
Most Expensive
B
MOH London
LG436046743 · Oct 29
€4,190 EUR
£3,686 GBP
View
10 more retailers have this diamond
Prices start from €1,003 EURSave up to €3,188 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
1.63ct Marquise
€1,003 EUR