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Marquise|Lab Grown|IGI

0.55ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG826605597

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826605597

Diamond specifications and retailer prices

From €81 EUR
$90 USD
As of October 30, 2026
Save €654 EUR (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €734 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.55ct lab-grown marquise diamond

This 0.55ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826605597 or 826605597. Listed at 14 retailers as of October 30, 2026, with prices from €81 to €734, a €654 spread on the same certified stone. MOH London lists it at €734. 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

0.55
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826605597
Dimensions9.60 × 3.87 × 2.60 mm
L/W Ratio2.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.60 mm3.87 mm0.55 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826605597
Side View
Table 62.0%Crown 36.2°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 67.2%

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: Oct 30
Current: €734 EUR|Low: €64 EUR|High: €743 EUR|Avg: €223 EUR|-0.2%
MOH London
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
November 1, 2026
Retailer 11€81 EUR
Retailer 6€90 EUR
Retailer 14€94 EUR
Retailer 3€107 EUR
Retailer 12€107 EUR
Retailer 5€136 EUR
Retailer 9€148 EUR
Retailer 2€186 EUR
Retailer 8€188 EUR
Retailer 7€241 EUR
Retailer 4€310 EUR
Retailer 13€321 EUR
Retailer 10€358 EUR
MOH London€734 EUR

46 data points across 14 retailers

14 retailers€81 EUR to €734 EUR

A
Cheapest Retailer
-
€81 EUR
$90 USD
A
Retailer 2
-
€90 EUR
$101 USD
View
Final sale: no returns
A
Retailer 3
-
€94 EUR
$105 USD
View
A
Retailer 4
-
€107 EUR
$119 USD
View
Retailer 5
-
€107 EUR
$119 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€136 EUR
$152 USD
View
A
Retailer 7
-
€148 EUR
$165 USD
View
A
Retailer 8
-
€186 EUR
£163 GBP
View
A
Retailer 9
-
€188 EUR
View
B+
Retailer 10
-
€241 EUR
£212 GBP
View
B
Retailer 11
-
€310 EUR
$346 USD
View
B+
Retailer 12
-
€321 EUR
$359 USD
View
B
Retailer 13
-
€358 EUR
$400 USD
View
Most Expensive
B
MOH London
LG826605597 · Nov 1
€734 EUR
£646 GBP
View
13 more retailers have this diamond
Prices start from €81 EURSave up to €654 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
0.55ct Marquise
€81 EUR