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Round|Lab Grown|IGI

3.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG594321539

Shape and cutting style on the report: Round brilliant

Certificate IGI LG594321539

Diamond specifications and retailer prices

From €759 EUR
As of October 29, 2026
Save €2,203 EUR (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,963 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594321539 or 594321539. Listed at 13 retailers as of October 29, 2026, with prices from €759 to €2,963, a €2,203 spread on the same certified stone. Brilliant Earth lists it at €2,963. 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

3.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594321539
Dimensions9.82 × 9.90 × 5.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.82 mm9.90 mm3.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594321539
Side View
Table 58.0%Crown 33.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.6%

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 29
Current: €2,963 EUR|Low: €303 EUR|High: €3,258 EUR|Avg: €1,103 EUR|-9.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11€425 EUR
Retailer 3€470 EUR
Retailer 5€759 EUR
Retailer 8€774 EUR
Retailer 9€858 EUR
Retailer 10€899 EUR
Retailer 2€915 EUR
Retailer 7€999 EUR
Retailer 6€1,483 EUR
Retailer 4€2,316 EUR
Brilliant Earth€2,963 EUR

37 data points across 11 retailers

13 retailers€759 EUR to €2,963 EUR

Retailer 1
-
€380 EUR
$424 USD
Price last confirmed 37 days ago
Retailer 2
-
€425 EUR
$475 USD
View
Price last confirmed 37 days ago
Retailer 3
-
€465 EUR
$519 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
€759 EUR
View
A
Retailer 5
-
€774 EUR
$865 USD
View
B+
Retailer 6
-
€858 EUR
$959 USD
View
A
Retailer 7
-
€899 EUR
$1,004 USD
View
B+
Retailer 8
-
€915 EUR
£805 GBP
View
B+
Retailer 9
-
€999 EUR
$1,116 USD
View
B+
Retailer 10
-
€1,483 EUR
$1,657 USD
View
Retailer 11
-
€1,512 EUR
$1,689 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
€2,316 EUR
£2,037 GBP
View
Most Expensive
B
Brilliant Earth
7880315A · Oct 29
€2,963 EUR
$3,310 USD
View
12 more retailers have this diamond
Prices start from €759 EURSave up to €2,203 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
3.51ct Round
€759 EUR