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Round|Lab Grown|IGI

5.08ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG820601551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG820601551

Diamond specifications and retailer prices

From $658 USD
As of October 29, 2026
Save $3,212 USD (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,870 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 5.08ct lab-grown round diamond

This 5.08ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG820601551 or 820601551. Listed at 4 retailers as of October 28, 2026, with prices from $658 to $3,870, a $3,212 spread on the same certified stone. Brilliant Earth lists it at $3,870. 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

5.08
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG820601551
Dimensions10.95 × 11.02 × 6.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.95 mm11.02 mm5.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG820601551
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,870 USD|Low: $658 USD|High: $3,880 USD|Avg: $1,577 USD|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$658 USD
Retailer 6$920 USD
Retailer 7$1,186 USD
Retailer 2$1,186 USD
Retailer 5$1,650 USD
Retailer 4$1,824 USD
Brilliant Earth$3,870 USD

36 data points across 7 retailers

4 retailers$658 USD to $3,870 USD

A
Cheapest Retailer
-
$658 USD
Final sale: no returns
A
Retailer 2
-
$1,186 USD
£934 GBP
View
Retailer 3
-
$1,824 USD
View
Price last confirmed 43 days ago
Most Expensive
B
Brilliant Earth
21235641A · Oct 28
$3,870 USD
View
3 more retailers have this diamond
Prices start from $658 USDSave up to $3,212 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.

A
5.08ct Round
$658 USD