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0.51ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG785606032

Shape and cutting style on the report: Round brilliant

Certificate IGI LG785606032

Diamond specifications and retailer prices

From $145 USD
As of November 4, 2026
Save $646 USD (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $791 USD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG785606032 or 785606032. Listed at 5 retailers as of November 2, 2026, with prices from $145 to $791, a $646 spread on the same certified stone. MOH London lists it at $791. 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

0.51
Carat
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG785606032
Dimensions5.17 × 5.12 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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
5.17 mm5.12 mm0.51 ctE / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG785606032
Side View
Table 61.0%Crown 36.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $791 USD|Low: $145 USD|High: $800 USD|Avg: $303 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 2$145 USD
Retailer 3$208 USD
Retailer 5$231 USD
Retailer 6$312 USD
Retailer 4$341 USD
MOH London$791 USD

16 data points across 6 retailers

5 retailers$145 USD to $791 USD

A
Cheapest Retailer
-
$145 USD
A
Retailer 2
-
$208 USD
View
B+
Retailer 3
-
$231 USD
View
B
Retailer 4
-
$341 USD
View
Most Expensive
B
MOH London
LG785606032 · Nov 2
$791 USD
£623 GBP
View
4 more retailers have this diamond
Prices start from $145 USDSave up to $646 USD

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
0.51ct Round
$145 USD