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0.51ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG459130188

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459130188

Diamond specifications and retailer prices

From $661 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $661 USD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

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 very-good cut grade and certified by IGI LG459130188 or 459130188. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.51
Carat
E
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle29.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459130188
Dimensions5.26 × 5.30 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
5.26 mm5.30 mm0.51 ctE / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459130188
Side View
Table 59.5%Crown 29.8°GirdlePavilion 40.3°Culet: NoneDepth 57.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 4
Current: $661 USD|Low: $635 USD|High: $1,068 USD|Avg: $796 USD|-38.1%
September 23, 2026
B2C Jewels$661 USD

4 data points across 1 retailer

1 retailer

C
B2C Jewels
19098687 · Nov 4
$661 USD
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C
0.51ct Round
$661 USD