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Round|Lab Grown|IGI

1.51ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG555273644

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273644

Diamond specifications and retailer prices

From €330 EUR
As of November 5, 2026
Save €1,020 EUR (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,600 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG555273644 or 555273644. Listed at 15 retailers as of November 4, 2026, with a 309% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273644
Dimensions7.37 × 7.33 × 4.50 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
Top View
7.37 mm7.33 mm1.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273644
Side View
Table 56.5%Crown 35°GirdlePavilion 40.2°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
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: Nov 5
Current: €1,600 EUR|Low: €263 EUR|High: €1,618 EUR|Avg: €751 EUR|-1.0%
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
Retailer 14
Retailer 15
November 4, 2026
Retailer 11€330 EUR
Retailer 4€369 EUR
Retailer 13€382 EUR
Retailer 3€409 EUR
Retailer 12€409 EUR
Retailer 8€543 EUR
Retailer 6€624 EUR
Retailer 15€634 EUR
Retailer 2€636 EUR
Retailer 14€653 EUR
Retailer 9€705 EUR
Retailer 10€1,199 EUR
Retailer 5€1,315 EUR
Retailer 7€1,350 EUR
MOH London€1,600 EUR

37 data points across 15 retailers

15 retailers€330 EUR to €1,350 EUR

A
Cheapest Retailer
-
€330 EUR
A
Retailer 2
-
€369 EUR
View
Final sale: no returns
A
Retailer 3
-
€382 EUR
View
Retailer 4
-
€409 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
-
€409 EUR
View
A
Retailer 6
-
€543 EUR
View
B+
Retailer 7
-
€624 EUR
View
B+
Retailer 8
-
€634 EUR
View
B+
Retailer 9
-
€636 EUR
View
B+
Retailer 10
-
€653 EUR
View
B+
Retailer 11
-
€705 EUR
View
B
Retailer 12
-
€1,199 EUR
View
B
Retailer 13
-
€1,315 EUR
View
B
Retailer 14
-
€1,350 EUR
View
Most Expensive
MOH London
LG555273644 · Oct 26
€1,600 EUR
£1,414 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from €330 EURSave up to €1,020 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
1.51ct Round
€330 EUR