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Round|Lab Grown|IGI

5.03ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG818699574

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818699574

Diamond specifications and retailer prices

From $668 USD
As of October 29, 2026
Save $3,162 USD (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,830 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 5.03ct lab-grown round diamond

This 5.03ct 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 LG818699574 or 818699574. Listed at 4 retailers as of October 28, 2026, with prices from $668 to $3,830, a $3,162 spread on the same certified stone. Brilliant Earth lists it at $3,830. 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

5.03
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818699574
Dimensions10.86 × 10.93 × 6.89 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
10.86 mm10.93 mm5.03 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818699574
Side View
Table 58.0%Crown 36.3°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.3%

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: $3,830 USD|Low: $668 USD|High: $3,840 USD|Avg: $1,575 USD|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$668 USD
Retailer 4$925 USD
Retailer 2$1,196 USD
Retailer 7$1,197 USD
Retailer 6$1,623 USD
Retailer 5$1,842 USD
Brilliant Earth$3,830 USD

35 data points across 7 retailers

4 retailers$668 USD to $3,830 USD

A
Cheapest Retailer
-
$668 USD
Final sale: no returns
A
Retailer 2
-
$1,196 USD
£942 GBP
View
Retailer 3
-
$1,842 USD
View
Price last confirmed 44 days ago
Most Expensive
B
Brilliant Earth
21229021A · Oct 28
$3,830 USD
View
3 more retailers have this diamond
Prices start from $668 USDSave up to $3,162 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
5.03ct Round
$668 USD