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 $634 USD
As of October 29, 2026
Save $5,476 USD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,110 USD at Brilliant Earth · As of October 29, 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 $634 to $6,110, a $5,476 spread on the same certified stone. Brilliant Earth lists it at $6,110. 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
Color
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: $6,110 USD|Low: $634 USD|High: $6,110 USD|Avg: $1,940 USD
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
October 30, 2026
Retailer 7$634 USD
Retailer 12$707 USD
Retailer 9$736 USD
Retailer 5$1,080 USD
Retailer 2$1,171 USD
Retailer 4$1,218 USD
Retailer 10$1,227 USD
Retailer 11$1,702 USD
Retailer 13$1,751 USD
Retailer 6$1,854 USD
Retailer 3$3,000 USD
Retailer 8$3,117 USD
Brilliant Earth$6,110 USD

43 data points across 13 retailers

16 retailers$634 USD to $6,110 USD

A
Cheapest Retailer
-
$634 USD
A
Retailer 2
-
$707 USD
View
A
Retailer 3
-
$736 USD
View
Retailer 4
-
$754 USD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$1,080 USD
View
A
Retailer 6
-
$1,171 USD
£922 GBP
View
B+
Retailer 7
-
$1,218 USD
View
A
Retailer 8
-
$1,227 USD
€1,169 EUR
View
B+
Retailer 9
-
$1,702 USD
A$2,618 AUD
View
B+
Retailer 10
-
$1,751 USD
View
B+
Retailer 11
-
$1,854 USD
View
Retailer 12
-
$1,879 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$2,120 USD
View
Retailer 14
-
$3,000 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$3,117 USD
£2,454 GBP
View
Most Expensive
B
Brilliant Earth
14050581A · Oct 29
$6,110 USD
View
15 more retailers have this diamond
Prices start from $634 USDSave up to $5,476 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
5.15ct Round
$634 USD