CaratHunter
Plans
Oval|Lab Grown|IGI

1.05ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG520205842

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG520205842

Diamond specifications and retailer prices

From $1,180 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $1,180 USD at Brilliant Earth
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 Brilliant Earth

About this 1.05ct lab-grown oval diamond

This 1.05ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG520205842 or 520205842. Listed at a single retailer as of November 6, 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520205842
Dimensions8.49 × 5.69 × 3.50 mm
L/W Ratio1.49
Girdle conditionFaceted
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
8.49 mm5.69 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520205842
Side View
Table 59.5%Crown 34.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,180 USD|Low: $564 USD|High: $1,180 USD|Avg: $906 USD
Brilliant Earth
Retailer 2
December 30, 2025
Retailer 2$564 USD
Brilliant Earth$1,180 USD

5 data points across 2 retailers

1 retailer

B
Brilliant Earth
13225828A · Nov 6
$1,180 USD
View

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.

B
1.05ct Oval
$1,180 USD