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5.09ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG826629579

Shape and cutting style on the report: Round brilliant

Certificate IGI LG826629579

Diamond specifications and retailer prices

From $1,183 NZD
$667 USD
As of October 29, 2026
Save $5,701 NZD (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,884 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.09ct lab-grown round diamond

This 5.09ct 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 LG826629579 or 826629579. Listed at 4 retailers as of October 29, 2026, with prices from $1,183 to $6,884, a $5,701 spread on the same certified stone. Brilliant Earth lists it at $6,884. 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

5.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826629579
Dimensions10.94 × 10.99 × 6.87 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
10.94 mm10.99 mm5.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826629579
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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: $6,884 NZD|Low: $1,183 NZD|High: $6,884 NZD|Avg: $2,803 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$1,183 NZD
Retailer 4$1,641 NZD
Retailer 2$2,125 NZD
Retailer 7$2,127 NZD
Retailer 6$2,940 NZD
Retailer 5$3,274 NZD
Brilliant Earth$6,884 NZD

34 data points across 7 retailers

4 retailers$1,183 NZD to $6,884 NZD

A
Cheapest Retailer
-
$1,183 NZD
$667 USD
Final sale: no returns
A
Retailer 2
-
$2,125 NZD
£943 GBP
View
Retailer 3
-
$3,274 NZD
$1,845 USD
View
Price last confirmed 44 days ago
Most Expensive
B
Brilliant Earth
21229585A · Oct 29
$6,884 NZD
$3,880 USD
View
3 more retailers have this diamond
Prices start from $1,183 NZDSave up to $5,701 NZD

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
5.09ct Round
$1,183 NZD