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0.91ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG532239534

Shape and cutting style on the report: Round brilliant

Certificate IGI LG532239534

Diamond specifications and retailer prices

From $612 USD
£482 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $612 USD at Diamond Quarter
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 Diamond Quarter

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 LG532239534 or 532239534. Listed at a single retailer as of October 28, 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532239534
Dimensions6.21 × 6.24 × 3.84 mm
L/W Ratio1.00
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
6.21 mm6.24 mm0.91 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532239534
Side View
Table 57.5%Crown 32.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $612 USD|Low: $353 USD|High: $784 USD|Avg: $555 USD
Diamond Quarter
Retailer 2
February 7, 2026
Retailer 2$353 USD
Diamond Quarter$612 USD

19 data points across 2 retailers

1 retailer

B
Diamond Quarter
0.91SI1ELG503E91N · Oct 28
$612 USD
£482 GBP
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B
0.91ct Round
$612 USD