Marquise|Lab Grown|IGI

1.05ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG846656583

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846656583

Diamond specifications and retailer prices

From €183 EUR
HK$1,600 HKD
As of October 30, 2026
Save €372 EUR (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €555 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846656583 or 846656583. Listed at 7 retailers as of October 29, 2026, with prices from €183 to €555, a €372 spread on the same certified stone. Brilliant Earth lists it at €555. 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656583
Dimensions10.56 × 5.19 × 3.30 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.56 mm5.19 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846656583
Side View
Table 65.0%Crown 37.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.6%

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: €461 EUR|Low: €139 EUR|High: €461 EUR|Avg: €275 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 3€139 EUR
Retailer 2€183 EUR
Retailer 5€201 EUR
Retailer 6€262 EUR
Retailer 7€288 EUR
Retailer 4€429 EUR
Retailer 1€461 EUR

3 data points across 7 retailers

7 retailers€183 EUR to €555 EUR

A
Cheapest Retailer
-
€183 EUR
HK$1,600 HKD
A
Retailer 2
-
€201 EUR
£177 GBP
View
A
Retailer 3
-
€262 EUR
£230 GBP
View
A
Retailer 4
-
€288 EUR
$322 USD
View
B
Retailer 5
-
€429 EUR
SGD 648 SGD
View
B+
Retailer 6
-
€461 EUR
$515 USD
View
Most Expensive
B
Brilliant Earth
22251229A · Oct 29
€555 EUR
$620 USD
View
6 more retailers have this diamond
Prices start from €183 EURSave up to €372 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
1.05ct Marquise
€183 EUR