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Round|Lab Grown|IGI

3.56ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG689536418

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689536418

Diamond specifications and retailer prices

From €339 EUR
$379 USD
As of October 29, 2026
Save €1,370 EUR (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,710 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.56ct lab-grown round diamond

This 3.56ct 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 LG689536418 or 689536418. Listed at 15 retailers as of October 28, 2026, with prices from €339 to €1,710, a €1,370 spread on the same certified stone. Rare Carat lists it at €1,710. 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

3.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689536418
Dimensions9.85 × 9.91 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.85 mm9.91 mm3.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689536418
Side View
Table 57.0%Crown 34.4°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €1,710 EUR|Low: €339 EUR|High: €4,583 EUR|Avg: €1,359 EUR|-27.6%
Rare Carat
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 12€339 EUR
Retailer 7€380 EUR
Retailer 6€421 EUR
Retailer 17€470 EUR
Retailer 13€555 EUR
Retailer 11€564 EUR
Retailer 4€670 EUR
Retailer 14€672 EUR
Retailer 16€717 EUR
Retailer 2€759 EUR
Retailer 3€987 EUR
Retailer 10€1,181 EUR
Retailer 5€1,352 EUR
Retailer 15€1,653 EUR
Rare Carat€1,710 EUR
Retailer 8€4,366 EUR
Retailer 9€4,583 EUR

5 data points across 17 retailers

15 retailers€339 EUR to €1,710 EUR

A
Cheapest Retailer
-
€339 EUR
$379 USD
A
Retailer 2
-
€380 EUR
$425 USD
View
A
Retailer 3
-
€421 EUR
$470 USD
View
A
Retailer 4
-
€470 EUR
HK$4,100 HKD
View
A
Retailer 5
-
€555 EUR
$620 USD
View
A
Retailer 6
-
€564 EUR
£496 GBP
View
B+
Retailer 7
-
€670 EUR
$748 USD
View
A
Retailer 8
-
€672 EUR
View
A
Retailer 9
-
€717 EUR
$801 USD
View
A
Retailer 10
-
€759 EUR
£668 GBP
View
B+
Retailer 11
-
€987 EUR
$1,103 USD
View
B+
Retailer 12
-
€1,181 EUR
$1,319 USD
View
B+
Retailer 13
-
€1,352 EUR
$1,511 USD
View
B
Retailer 14
-
€1,653 EUR
£1,454 GBP
View
Most Expensive
B
Rare Carat
KI4185364KF689 · Oct 28
€1,710 EUR
$1,910 USD
View
14 more retailers have this diamond
Prices start from €339 EURSave up to €1,370 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
3.56ct Round
€339 EUR