CaratHunter
Plans
Round|Lab Grown|IGI

5.10ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG839604459

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839604459

Diamond specifications and retailer prices

From $660 USD
As of October 29, 2026
Save $3,230 USD (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,890 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.1ct lab-grown round diamond

This 5.1ct 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 LG839604459 or 839604459. Listed at 3 retailers as of October 29, 2026, with prices from $660 to $3,890, a $3,230 spread on the same certified stone. Brilliant Earth lists it at $3,890. 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

5.10
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839604459
Dimensions11.06 × 11.11 × 6.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.06 mm11.11 mm5.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839604459
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.0%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,890 USD|Low: $660 USD|High: $4,010 USD|Avg: $2,258 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$660 USD
Retailer 2$1,191 USD
Brilliant Earth$3,890 USD

27 data points across 3 retailers

3 retailers$660 USD to $3,890 USD

A
Cheapest Retailer
-
$660 USD
Final sale: no returns
A
Retailer 2
-
$1,191 USD
£938 GBP
View
Most Expensive
B
Brilliant Earth
21542103A · Oct 29
$3,890 USD
View
2 more retailers have this diamond
Prices start from $660 USDSave up to $3,230 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
5.10ct Round
$660 USD