Round|Lab Grown|IGI

1.21ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG480171498

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480171498

Diamond specifications and retailer prices

From €618 EUR

$690 USD

As of October 31, 2026

Save €3,625 EUR (85%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €4,242 EUR at MOH London · As of October 27, 2026

View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG480171498 or 480171498. Listed at 12 retailers as of October 27, 2026, with prices from €618 to €4,242, a €3,625 spread on the same certified stone. MOH London lists it at €4,242. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishVery Good

SymmetryExcellent

FluorescenceNone

Crown angle31.5°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG480171498

Dimensions6.97 × 6.93 × 4.16 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

PolishVery Good

SymmetryExcellent

FluorescenceNone

CertificateIGI LG480171498

Side View

Caratlytics Score

How it works →

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 31

Current: €4,242 EUR|Low: €618 EUR|High: €4,294 EUR|Avg: €2,115 EUR|+0.1%

MOH London

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 2€618 EUR

Retailer 7€1,137 EUR

Retailer 11€1,273 EUR

Retailer 8€1,318 EUR

Retailer 10€1,318 EUR

Retailer 12€1,472 EUR

Retailer 13€1,813 EUR

Retailer 9€2,088 EUR

Retailer 6€2,424 EUR

Retailer 3€2,458 EUR

Retailer 5€2,952 EUR

Retailer 4€3,776 EUR

MOH London€4,242 EUR

21 data points across 13 retailers

12 retailers€618 EUR to €4,242 EUR

Cheapest Retailer

€618 EUR

$690 USD

B+

Retailer 2

€1,137 EUR

$1,270 USD

View

B+

Retailer 3

€1,237 EUR

$1,382 USD

View

B+

Retailer 4

€1,273 EUR

$1,422 USD

View

Final sale: no returns

Retailer 5

€1,318 EUR

$1,473 USD

View

Price last confirmed 20 days ago

Retailer 6

€1,318 EUR

$1,473 USD

View

B+

Retailer 7

€1,472 EUR

$1,645 USD

View

Retailer 8

€2,088 EUR

$2,333 USD

View

Retailer 9

€2,424 EUR

ZAR 43,754 ZAR

View

Retailer 10

€2,458 EUR

$2,746 USD

View

Retailer 11

€2,472 EUR

$2,762 USD

View

Most Expensive

MOH London

LG480171498 · Oct 27

€4,242 EUR

£3,732 GBP

View

11 more retailers have this diamond

Prices start from €618 EURSave up to €3,625 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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