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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG794610644

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794610644

Diamond specifications and retailer prices

From €175 EUR
$196 USD
As of November 1, 2026
Save €836 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,011 EUR at MOH London · As of November 1, 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 top-tier cut grade and certified by IGI LG794610644 or 794610644. Listed at 19 retailers as of November 1, 2026, with prices from €175 to €1,011, a €836 spread on the same certified stone. MOH London lists it at €1,011. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794610644
Dimensions7.44 × 7.38 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.38 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794610644
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 40.2°Culet: NoneDepth 60.4%

Caratlytics Score

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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 1
Current: €1,011 EUR|Low: €170 EUR|High: €1,041 EUR|Avg: €494 EUR|-1.8%
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
Retailer 16
November 2, 2026
Retailer 4€175 EUR
Retailer 14€194 EUR
Retailer 13€202 EUR
Retailer 10€217 EUR
Retailer 6€218 EUR
Retailer 15€376 EUR
Retailer 9€394 EUR
Retailer 7€405 EUR
Retailer 12€513 EUR
Retailer 2€567 EUR
Retailer 5€637 EUR
Retailer 11€695 EUR
Retailer 16€705 EUR
Retailer 3€743 EUR
Retailer 8€767 EUR
MOH London€1,011 EUR

36 data points across 16 retailers

19 retailers€175 EUR to €1,011 EUR

Retailer 1
-
€175 EUR
$196 USD
Price last confirmed 45 days ago
A
Retailer 2
-
€175 EUR
$196 USD
View
A
Retailer 3
-
€194 EUR
$218 USD
View
Final sale: no returns
A
Retailer 4
-
€202 EUR
$227 USD
View
Retailer 5
-
€212 EUR
$238 USD
View
Price last confirmed 44 days ago
A
Retailer 6
-
€217 EUR
$243 USD
View
Retailer 7
-
€218 EUR
$244 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€376 EUR
$422 USD
View
A
Retailer 9
-
€394 EUR
£348 GBP
View
A
Retailer 10
-
€405 EUR
$454 USD
View
B+
Retailer 11
-
€513 EUR
$575 USD
View
B+
Retailer 12
-
€567 EUR
$636 USD
View
B+
Retailer 13
-
€637 EUR
$715 USD
View
Retailer 14
-
€691 EUR
$775 USD
View
Price last confirmed 42 days ago
B+
Retailer 15
-
€695 EUR
$780 USD
View
B+
Retailer 16
-
€705 EUR
SGD 1,068 SGD
View
B+
Retailer 17
-
€743 EUR
$833 USD
View
B
Retailer 18
-
€767 EUR
$860 USD
View
Most Expensive
B
MOH London
LG794610644 · Nov 1
€1,011 EUR
£893 GBP
View
18 more retailers have this diamond
Prices start from €175 EURSave up to €836 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
€175 EUR