Princess|Lab Grown|IGI

3.42ct D SI1 Princess Lab Grown Diamond

EX • D/SI1 • IGI LG731534647

Shape and cutting style on the report: Princess cut

Certificate IGI LG731534647

Diamond specifications and retailer prices

From €398 EUR
$445 USD
As of October 30, 2026
Save €3,612 EUR (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €4,010 EUR at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 3.42ct lab-grown princess diamond

This 3.42ct lab-grown princess 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 LG731534647 or 731534647. Listed at 24 retailers as of October 30, 2026, with prices from €398 to €4,010, a €3,612 spread on the same certified stone. Kay Jewelers lists it at €4,010. 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

3.42
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731534647
Dimensions8.20 × 8.11 × 5.72 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm8.11 mm3.42 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731534647
Side View
Table 68.0%Crown 41.2°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 70.5%

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: €906 EUR|Low: €382 EUR|High: €4,959 EUR|Avg: €1,319 EUR|+2.7%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 17€398 EUR
Retailer 7€446 EUR
Retailer 2€494 EUR
Retailer 6€494 EUR
Retailer 14€622 EUR
Retailer 9€745 EUR
Retailer 11€794 EUR
Retailer 13€831 EUR
Retailer 8€842 EUR
Retailer 1€906 EUR
Retailer 16€1,327 EUR
Retailer 3€1,434 EUR
Retailer 4€1,593 EUR
Retailer 5€1,761 EUR
Retailer 12€2,287 EUR
Retailer 15€2,788 EUR
Retailer 10€3,339 EUR

45 data points across 17 retailers

24 retailers€398 EUR to €4,010 EUR

A
Cheapest Retailer
-
€398 EUR
$445 USD
A
Retailer 2
-
€446 EUR
$498 USD
View
A
Retailer 3
-
€494 EUR
$552 USD
View
A
Retailer 4
-
€494 EUR
$552 USD
View
A
Retailer 5
-
€622 EUR
$695 USD
View
B+
Retailer 6
-
€652 EUR
$728 USD
View
Retailer 7
-
€745 EUR
£656 GBP
View
Price last confirmed 38 days ago
A
Retailer 8
-
€747 EUR
$835 USD
View
A
Retailer 9
-
€794 EUR
View
A
Retailer 10
-
€842 EUR
$941 USD
View
B+
Retailer 11
-
€906 EUR
£797 GBP
View
B+
Retailer 12
-
€1,327 EUR
$1,483 USD
View
B+
Retailer 13
-
€1,339 EUR
$1,496 USD
View
B+
Retailer 14
-
€1,434 EUR
$1,602 USD
View
B
Retailer 15
-
€1,544 EUR
$1,725 USD
View
B
Retailer 16
-
€1,593 EUR
$1,780 USD
View
B
Retailer 17
-
€1,761 EUR
$1,967 USD
View
B
Retailer 18
-
€1,957 EUR
$2,186 USD
View
B
Retailer 19
-
€2,287 EUR
£2,012 GBP
View
Retailer 20
-
€2,788 EUR
$3,115 USD
View
Price last confirmed 13 days ago
B
Retailer 21
-
€3,339 EUR
$3,730 USD
View
B
Retailer 22
-
€3,536 EUR
$3,950 USD
View
B
Retailer 23
-
€4,010 EUR
$4,480 USD
View
Most Expensive
B
Kay Jewelers
257256815 · Oct 30
€4,010 EUR
$4,480 USD
View
23 more retailers have this diamond
Prices start from €398 EURSave up to €3,612 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
3.42ct Princess
€398 EUR