Round|Lab Grown|IGI

1.71ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG573377307

Shape and cutting style on the report: Round brilliant

Certificate IGI LG573377307

Diamond specifications and retailer prices

From €181 EUR

$203 USD

As of October 29, 2026

Save €1,558 EUR (90%) vs most expensive(unlock to see where)

10 retailers carry this diamond

Most expensive: €1,739 EUR at Do Amore Diamonds · As of October 29, 2026

View at Do Amore Diamonds

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG573377307 or 573377307. Listed at 10 retailers as of October 29, 2026, with prices from €181 to €1,739, a €1,558 spread on the same certified stone. Do Amore Diamonds lists it at €1,739. 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

1.71

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.7°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG573377307

Dimensions7.64 × 7.60 × 4.75 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG573377307

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 29

Current: €1,739 EUR|Low: €176 EUR|High: €1,774 EUR|Avg: €648 EUR|-2.0%

Do Amore Diamonds

Retailer 2

Retailer 3

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Retailer 6

Retailer 7

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Retailer 9

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Retailer 12

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Retailer 14

October 29, 2026

Retailer 13€181 EUR

Retailer 14€205 EUR

Retailer 12€210 EUR

Retailer 11€388 EUR

Retailer 2€458 EUR

Retailer 4€482 EUR

Retailer 5€537 EUR

Retailer 3€572 EUR

Retailer 8€722 EUR

Retailer 9€725 EUR

Retailer 10€797 EUR

Retailer 7€994 EUR

Retailer 6€999 EUR

Do Amore Diamonds€1,739 EUR

38 data points across 14 retailers

10 retailers€181 EUR to €1,739 EUR

Cheapest Retailer

€181 EUR

$203 USD

Retailer 2

€205 EUR

$230 USD

View

Final sale: no returns

Retailer 3

€210 EUR

$236 USD

View

B+

Retailer 4

€388 EUR

$435 USD

View

Retailer 5

€458 EUR

£404 GBP

View

Retailer 6

€722 EUR

$810 USD

View

Price last confirmed 12 days ago

Retailer 7

€725 EUR

$813 USD

View

Price last confirmed 7 days ago

B+

Retailer 8

€797 EUR

$894 USD

View

Retailer 9

€994 EUR

£878 GBP

View

Most Expensive

Do Amore Diamonds

27-706090C23 · Oct 29

€1,739 EUR

$1,950 USD

View

9 more retailers have this diamond

Prices start from €181 EURSave up to €1,558 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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1.71ct Round

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