Round|Lab Grown|IGI

11.56ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG577382882

Shape and cutting style on the report: Round brilliant

Certificate IGI LG577382882

Diamond specifications and retailer prices

From €1,245 EUR

£1,099 GBP

As of November 2, 2026

Save €4,807 EUR (79%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €6,051 EUR at Adiamor · As of November 2, 2026

View at Adiamor

About this 11.56ct lab-grown round diamond

This 11.56ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG577382882 or 577382882. Listed at 14 retailers as of November 2, 2026, with prices from €1,245 to €6,051, a €4,807 spread on the same certified stone. Adiamor lists it at €6,051. 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

11.56

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG577382882

Dimensions14.50 × 14.61 × 8.92 mm

L/W Ratio1.01

Girdle conditionFaceted

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG577382882

Side View

Caratlytics Score

How it works →

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: Nov 2

Current: €6,051 EUR|Low: €1,245 EUR|High: €20,943 EUR|Avg: €4,916 EUR

Adiamor

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

November 2, 2026

Retailer 2€1,245 EUR

Retailer 13€1,336 EUR

Retailer 11€1,453 EUR

Retailer 3€1,550 EUR

Retailer 14€1,703 EUR

Retailer 4€1,826 EUR

Retailer 16€2,053 EUR

Retailer 9€2,180 EUR

Retailer 10€2,442 EUR

Retailer 15€2,497 EUR

Retailer 12€2,813 EUR

Retailer 6€2,905 EUR

Retailer 5€4,899 EUR

Adiamor€6,051 EUR

Retailer 8€15,389 EUR

Retailer 7€20,943 EUR

6 data points across 16 retailers

14 retailers€1,245 EUR to €6,051 EUR

Cheapest Retailer

€1,245 EUR

£1,099 GBP

Retailer 2

€1,336 EUR

$1,498 USD

View

Retailer 3

€1,453 EUR

$1,630 USD

View

Retailer 4

€1,550 EUR

$1,738 USD

View

Retailer 5

€1,703 EUR

$1,910 USD

View

Retailer 6

€1,826 EUR

HK$16,000 HKD

View

Retailer 7

€2,053 EUR

$2,303 USD

View

Retailer 8

€2,180 EUR

£1,925 GBP

View

B+

Retailer 9

€2,442 EUR

$2,739 USD

View

Retailer 10

€2,497 EUR

View

B+

Retailer 11

€2,813 EUR

$3,155 USD

View

B+

Retailer 12

€2,905 EUR

$3,258 USD

View

Retailer 13

€4,899 EUR

$5,495 USD

View

Most Expensive

Adiamor

D-82834942 · Nov 2

€6,051 EUR

$6,787 USD

View

13 more retailers have this diamond

Prices start from €1,245 EURSave up to €4,807 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.

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11.56ct Round

€1,245 EUR