CaratHunter
Plans
Round|Lab Grown|IGI

1.51ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG500151229

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151229

Diamond specifications and retailer prices

From €752 EUR
$840 USD
As of October 31, 2026
Save €2,982 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,734 EUR at MOH London · As of October 29, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500151229 or 500151229. Listed at 10 retailers as of October 29, 2026, with prices from €752 to €3,734, a €2,982 spread on the same certified stone. MOH London lists it at €3,734. 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

1.51
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151229
Dimensions7.36 × 7.39 × 4.53 mm
L/W Ratio1.00
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
7.36 mm7.39 mm1.51 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151229
Side View
Table 55.5%Crown 35°GirdlePavilion 40.2°Culet: NoneDepth 61.5%

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 31
Current: €3,734 EUR|Low: €752 EUR|High: €3,765 EUR|Avg: €1,696 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2€752 EUR
Retailer 4€944 EUR
Retailer 7€1,028 EUR
Retailer 9€1,058 EUR
Retailer 5€1,096 EUR
Retailer 11€1,581 EUR
Retailer 6€1,746 EUR
Retailer 8€2,053 EUR
Retailer 10€2,289 EUR
Retailer 3€2,450 EUR
MOH London€3,734 EUR

17 data points across 11 retailers

10 retailers€752 EUR to €3,734 EUR

A
Cheapest Retailer
-
€752 EUR
$840 USD
B+
Retailer 2
-
€944 EUR
$1,055 USD
View
B+
Retailer 3
-
€1,028 EUR
$1,148 USD
View
B+
Retailer 4
-
€1,058 EUR
$1,182 USD
View
Final sale: no returns
Retailer 5
-
€1,096 EUR
$1,224 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,096 EUR
$1,224 USD
View
B
Retailer 7
-
€1,746 EUR
$1,951 USD
View
B
Retailer 8
-
€2,053 EUR
$2,294 USD
View
B
Retailer 9
-
€2,289 EUR
$2,557 USD
View
Most Expensive
B
MOH London
LG500151229 · Oct 29
€3,734 EUR
£3,285 GBP
View
9 more retailers have this diamond
Prices start from €752 EURSave up to €2,982 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
€752 EUR