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Round|Lab Grown|IGI

1.00ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG474128840

Shape and cutting style on the report: Round brilliant

Certificate IGI LG474128840

Diamond specifications and retailer prices

From €292 EUR
$326 USD
As of October 30, 2026
Save €445 EUR (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €737 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG474128840 or 474128840. Listed at 5 retailers as of October 29, 2026, with prices from €292 to €737, a €445 spread on the same certified stone. MOH London lists it at €737. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474128840
Dimensions6.51 × 6.50 × 3.86 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.51 mm6.50 mm1.00 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474128840
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
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: €737 EUR|Low: €213 EUR|High: €789 EUR|Avg: €454 EUR|-5.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3€292 EUR
Retailer 6€341 EUR
Retailer 4€376 EUR
Retailer 5€400 EUR
Retailer 2€554 EUR
MOH London€737 EUR

14 data points across 6 retailers

5 retailers€292 EUR to €737 EUR

A
Cheapest Retailer
-
€292 EUR
$326 USD
B+
Retailer 2
-
€376 EUR
$420 USD
View
B+
Retailer 3
-
€400 EUR
$447 USD
View
B
Retailer 4
-
€554 EUR
$619 USD
View
Most Expensive
B
MOH London
LG474128840 · Oct 29
€737 EUR
£648 GBP
View
4 more retailers have this diamond
Prices start from €292 EURSave up to €445 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
1.00ct Round
€292 EUR