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Oval|Lab Grown|IGI

0.59ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG585321801

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG585321801

Diamond specifications and retailer prices

From $422 USD
£332 GBP
As of October 29, 2026
Save $48 USD (10%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $470 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 0.59ct lab-grown oval diamond

This 0.59ct lab-grown oval sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG585321801 or 585321801. Listed at 2 retailers as of October 29, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.59
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG585321801
Dimensions6.70 × 4.74 × 2.95 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.70 mm4.74 mm0.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG585321801
Side View
Table 59.0%Crown 35.1°Girdle: Slightly ThickPavilion 40.4°Culet: NoneDepth 62.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $470 USD|Low: $422 USD|High: $548 USD|Avg: $479 USD
Brilliant Earth
Retailer 2
Retailer 3
December 30, 2025
Retailer 2$422 USD
Brilliant Earth$470 USD
Retailer 3$548 USD

5 data points across 3 retailers

2 retailers$422 USD to $470 USD

B+
Cheapest Retailer
-
$422 USD
£332 GBP
Most Expensive
B
Brilliant Earth
14739001Y · Oct 29
$470 USD
View
1 more retailer has this diamond
Prices start from $422 USDSave up to $48 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.

B+
0.59ct Oval
$422 USD