Round|Lab Grown|IGI

2.50ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG499190306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499190306

Diamond specifications and retailer prices

From €1,369 EUR

$1,530 USD

As of October 30, 2026

Save €8,093 EUR (86%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €9,462 EUR at Moon Ocean · As of November 1, 2026

View at Moon Ocean

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499190306 or 499190306. Listed at 12 retailers as of October 30, 2026, with prices from €1,369 to €9,462, a €8,093 spread on the same certified stone. Moon Ocean lists it at €9,462. 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

2.50

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG499190306

Dimensions8.75 × 8.81 × 5.21 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizePointed

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG499190306

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: Oct 30

Current: €9,462 EUR|Low: €1,369 EUR|High: €9,592 EUR|Avg: €4,805 EUR|+0.3%

Moon Ocean

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 1, 2026

Retailer 2€1,369 EUR

Retailer 6€2,917 EUR

Retailer 9€3,267 EUR

Retailer 7€3,384 EUR

Retailer 5€3,522 EUR

Retailer 10€3,938 EUR

Retailer 4€4,668 EUR

Retailer 8€5,252 EUR

Retailer 3€8,623 EUR

Moon Ocean€9,462 EUR

41 data points across 10 retailers

12 retailers€1,369 EUR to €9,462 EUR

Cheapest Retailer

€1,369 EUR

$1,530 USD

B+

Retailer 2

€2,917 EUR

$3,259 USD

View

B+

Retailer 3

€3,174 EUR

$3,546 USD

View

B+

Retailer 4

€3,267 EUR

$3,650 USD

View

Final sale: no returns

Retailer 5

€3,384 EUR

$3,781 USD

View

Retailer 6

€3,384 EUR

$3,781 USD

View

Price last confirmed 19 days ago

B+

Retailer 7

€3,522 EUR

$3,935 USD

View

Retailer 8

€4,228 EUR

$4,724 USD

View

Retailer 9

€4,668 EUR

$5,215 USD

View

Retailer 10

€5,252 EUR

$5,868 USD

View

Retailer 11

€8,623 EUR

£7,586 GBP

View

Most Expensive

Moon Ocean

NVL-04D69BC98-306 · Nov 1

€9,462 EUR

£8,324 GBP

View

11 more retailers have this diamond

Prices start from €1,369 EURSave up to €8,093 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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2.50ct Round

€1,369 EUR