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0.91ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG512221177

Shape and cutting style on the report: Round brilliant

Certificate IGI LG512221177

Diamond specifications and retailer prices

From $1,208 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,208 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 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512221177 or 512221177. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.91
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221177
Dimensions6.23 × 6.19 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
6.23 mm6.19 mm0.91 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512221177
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,208 USD|Low: $1,149 USD|High: $2,006 USD|Avg: $1,475 USD|-39.8%
September 23, 2026
B2C Jewels$1,208 USD

4 data points across 1 retailer

1 retailer

B
B2C Jewels
20031512 · Oct 29
$1,208 USD
View

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B
0.91ct Round
$1,208 USD