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Marquise|Lab Grown|IGI

3.20ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG741570012

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG741570012

Diamond specifications and retailer prices

From €622 EUR
$695 USD
As of October 30, 2026
Save €3,146 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,768 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.2ct lab-grown marquise diamond

This 3.2ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG741570012 or 741570012. Listed at 15 retailers as of October 28, 2026, with prices from €622 to €3,768, a €3,146 spread on the same certified stone. Rare Carat lists it at €3,768. 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

3.20
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741570012
Dimensions15.92 × 7.73 × 4.62 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.92 mm7.73 mm3.20 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741570012
Side View
Table 62.0%Crown 32.4°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.8%

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: €3,768 EUR|Low: €597 EUR|High: €3,804 EUR|Avg: €1,507 EUR|-0.9%
Rare Carat
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 9€622 EUR
Retailer 10€721 EUR
Retailer 12€721 EUR
Retailer 4€1,034 EUR
Retailer 2€1,051 EUR
Retailer 3€1,064 EUR
Retailer 5€1,155 EUR
Retailer 6€1,546 EUR
Retailer 8€1,776 EUR
Retailer 11€2,027 EUR
Retailer 7€2,835 EUR
Rare Carat€3,768 EUR

43 data points across 12 retailers

15 retailers€622 EUR to €3,768 EUR

A
Cheapest Retailer
-
€622 EUR
$695 USD
A
Retailer 2
-
€677 EUR
$756 USD
View
A
Retailer 3
-
€721 EUR
$806 USD
View
Retailer 4
-
€721 EUR
$806 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€882 EUR
$985 USD
View
B+
Retailer 6
-
€1,034 EUR
$1,155 USD
View
A
Retailer 7
-
€1,051 EUR
£925 GBP
View
B+
Retailer 8
-
€1,064 EUR
$1,189 USD
View
B+
Retailer 9
-
€1,155 EUR
£1,016 GBP
View
B
Retailer 10
-
€1,546 EUR
A$2,658 AUD
View
B
Retailer 11
-
€1,588 EUR
$1,774 USD
View
B
Retailer 12
-
€1,776 EUR
$1,984 USD
View
B
Retailer 13
-
€2,027 EUR
$2,265 USD
View
B
Retailer 14
-
€2,835 EUR
£2,494 GBP
View
Most Expensive
B
Rare Carat
SJ-42F-7-A · Oct 28
€3,768 EUR
$4,210 USD
View
14 more retailers have this diamond
Prices start from €622 EURSave up to €3,146 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
3.20ct Marquise
€622 EUR