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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG844634675

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844634675

Diamond specifications and retailer prices

From €347 EUR
$388 USD
As of October 30, 2026
Save €572 EUR (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €920 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG844634675 or 844634675. Listed at 6 retailers as of October 29, 2026, with prices from €347 to €920, a €572 spread on the same certified stone. MOH London lists it at €920. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844634675
Dimensions7.22 × 7.31 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.22 mm7.31 mm1.51 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG844634675
Side View
Table 57.0%Crown 34.1°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 62.2%

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: Oct 30
Current: €920 EUR|Low: €332 EUR|High: €920 EUR|Avg: €533 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4€347 EUR
Retailer 2€350 EUR
Retailer 3€400 EUR
Retailer 5€495 EUR
Retailer 6€677 EUR
MOH London€920 EUR

14 data points across 6 retailers

6 retailers€347 EUR to €920 EUR

B+
Cheapest Retailer
-
€347 EUR
$388 USD
A
Retailer 2
-
€350 EUR
£308 GBP
View
B+
Retailer 3
-
€400 EUR
$447 USD
View
B+
Retailer 4
-
€495 EUR
$553 USD
View
B
Retailer 5
-
€677 EUR
$757 USD
View
Most Expensive
B
MOH London
LG844634675 · Oct 29
€920 EUR
£809 GBP
View
5 more retailers have this diamond
Prices start from €347 EURSave up to €572 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
€347 EUR