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Marquise|Lab Grown|IGI

4.55ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG835612753

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835612753

Diamond specifications and retailer prices

From €523 EUR
$584 USD
As of October 30, 2026
Save €2,449 EUR (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,972 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.55ct lab-grown marquise diamond

This 4.55ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835612753 or 835612753. Listed at 13 retailers as of October 30, 2026, with prices from €523 to €2,972, a €2,449 spread on the same certified stone. Brilliant Earth lists it at €2,972. 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

4.55
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835612753
Dimensions17.87 × 8.63 × 5.25 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.87 mm8.63 mm4.55 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835612753
Side View
Table 57.0%Crown 32.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.8%

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: €2,972 EUR|Low: €614 EUR|High: €5,308 EUR|Avg: €1,729 EUR|-44.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5€614 EUR
Retailer 11€710 EUR
Retailer 10€765 EUR
Retailer 12€870 EUR
Retailer 7€989 EUR
Retailer 6€1,014 EUR
Retailer 9€1,609 EUR
Retailer 8€2,051 EUR
Retailer 4€2,099 EUR
Retailer 3€2,735 EUR
Retailer 2€2,816 EUR
Brilliant Earth€2,972 EUR

41 data points across 12 retailers

13 retailers€523 EUR to €2,972 EUR

A
Cheapest Retailer
-
€523 EUR
$584 USD
A
Retailer 2
-
€614 EUR
£540 GBP
View
A
Retailer 3
-
€710 EUR
HK$6,200 HKD
View
A
Retailer 4
-
€765 EUR
$855 USD
View
B+
Retailer 5
-
€870 EUR
$972 USD
View
A
Retailer 6
-
€989 EUR
View
A
Retailer 7
-
€1,014 EUR
£892 GBP
View
B+
Retailer 8
-
€1,609 EUR
$1,798 USD
View
B
Retailer 9
-
€2,051 EUR
SGD 3,096 SGD
View
B
Retailer 10
-
€2,099 EUR
$2,346 USD
View
B
Retailer 11
-
€2,735 EUR
$3,056 USD
View
B
Retailer 12
-
€2,816 EUR
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
22315722A · Oct 31
€2,972 EUR
$3,320 USD
View
12 more retailers have this diamond
Prices start from €523 EURSave up to €2,449 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
4.55ct Marquise
€523 EUR