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Round|Lab Grown|IGI

4.11ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG778689659

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778689659

Diamond specifications and retailer prices

From €463 EUR
$517 USD
As of October 29, 2026
Save €3,798 EUR (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,261 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.11ct lab-grown round diamond

This 4.11ct lab-grown round 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 LG778689659 or 778689659. Listed at 11 retailers as of October 29, 2026, with prices from €463 to €4,261, a €3,798 spread on the same certified stone. Brilliant Earth lists it at €4,261. 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

4.11
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778689659
Dimensions10.18 × 10.21 × 6.34 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.18 mm10.21 mm4.11 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778689659
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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: €4,261 EUR|Low: €445 EUR|High: €6,275 EUR|Avg: €1,729 EUR|-32.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 10€463 EUR
Retailer 8€518 EUR
Retailer 12€641 EUR
Retailer 2€867 EUR
Retailer 13€931 EUR
Retailer 4€971 EUR
Retailer 9€1,480 EUR
Retailer 7€1,481 EUR
Retailer 11€1,508 EUR
Retailer 5€2,246 EUR
Retailer 3€2,269 EUR
Retailer 6€2,407 EUR
Brilliant Earth€4,261 EUR

31 data points across 13 retailers

11 retailers€463 EUR to €4,261 EUR

A
Cheapest Retailer
-
€463 EUR
$517 USD
A
Retailer 2
-
€518 EUR
$579 USD
View
Retailer 3
-
€641 EUR
£564 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
€867 EUR
View
A
Retailer 5
-
€931 EUR
$1,040 USD
View
B+
Retailer 6
-
€1,480 EUR
$1,653 USD
View
B
Retailer 7
-
€1,481 EUR
$1,655 USD
View
B+
Retailer 8
-
€1,508 EUR
$1,685 USD
View
Retailer 9
-
€2,269 EUR
SGD 3,426 SGD
View
Price last confirmed 18 days ago
B
Retailer 10
-
€2,407 EUR
£2,117 GBP
View
Most Expensive
B
Brilliant Earth
20805249A · Oct 31
€4,261 EUR
$4,760 USD
View
10 more retailers have this diamond
Prices start from €463 EURSave up to €3,798 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
4.11ct Round
€463 EUR