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Round|Lab Grown|IGI

5.15ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG683547837

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683547837

Diamond specifications and retailer prices

From $903 AUD
$634 USD
As of October 29, 2026
Save $4,052 AUD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,954 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.15ct lab-grown round diamond

This 5.15ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG683547837 or 683547837. Listed at 16 retailers as of October 29, 2026, with prices from $903 to $4,954, a $4,052 spread on the same certified stone. Brilliant Earth lists it at $4,954. 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

5.15
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683547837
Dimensions11.03 × 11.01 × 6.82 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.03 mm11.01 mm5.15 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683547837
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

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: $4,954 AUD|Low: $898 AUD|High: $8,698 AUD|Avg: $2,513 AUD|-43.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 12$903 AUD
Retailer 2$982 AUD
Retailer 14$1,048 AUD
Retailer 9$1,502 AUD
Retailer 10$1,667 AUD
Retailer 8$1,710 AUD
Retailer 3$1,747 AUD
Retailer 4$2,423 AUD
Retailer 7$2,434 AUD
Retailer 11$2,639 AUD
Retailer 6$3,018 AUD
Retailer 5$4,271 AUD
Retailer 13$4,437 AUD
Brilliant Earth$4,954 AUD

45 data points across 14 retailers

16 retailers$903 AUD to $4,954 AUD

A
Cheapest Retailer
-
$903 AUD
$634 USD
A
Retailer 2
-
$982 AUD
$690 USD
View
A
Retailer 3
-
$1,048 AUD
$736 USD
View
Retailer 4
-
$1,073 AUD
$754 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$1,502 AUD
$1,055 USD
View
A
Retailer 6
-
$1,667 AUD
£922 GBP
View
B+
Retailer 7
-
$1,710 AUD
$1,201 USD
View
B+
Retailer 8
-
$1,747 AUD
€1,169 EUR
View
B+
Retailer 9
-
$2,423 AUD
View
B+
Retailer 10
-
$2,434 AUD
$1,710 USD
View
B+
Retailer 11
-
$2,639 AUD
$1,854 USD
View
Retailer 12
-
$2,675 AUD
$1,879 USD
View
Price last confirmed 32 days ago
B
Retailer 13
-
$3,018 AUD
$2,120 USD
View
Retailer 14
-
$4,271 AUD
$3,000 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$4,437 AUD
£2,454 GBP
View
Most Expensive
B
Brilliant Earth
14050581A · Oct 30
$4,954 AUD
$3,480 USD
View
15 more retailers have this diamond
Prices start from $903 AUDSave up to $4,052 AUD

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
5.15ct Round
$903 AUD