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Round|Lab Grown|IGI

15.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG29263487

Certificate IGI LG29263487

Diamond specifications and retailer prices

From $10,847 AUD
CA$10,583 CAD
As of October 30, 2026
Save $13,489 AUD (55%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $24,336 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 15.09ct lab-grown round diamond

This 15.09ct 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 LG29263487 or 29263487. Listed at 2 retailers as of October 30, 2026, with prices from $10,847 to $24,336, a $13,489 spread on the same certified stone. Blue Nile lists it at $24,336. 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

15.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG29263487
Dimensions15.92 × 16.02 × 9.69 mm
L/W Ratio1.01
Top View
15.92 mm16.02 mm15.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG29263487
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $24,336 AUD|Low: $7,383 AUD|High: $24,336 AUD|Avg: $14,196 AUD
Blue Nile
Retailer 2
Retailer 3
September 22, 2026
Retailer 2$7,410 AUD
Retailer 3$10,847 AUD
Blue Nile$24,336 AUD

5 data points across 3 retailers

2 retailers$10,847 AUD to $24,336 AUD

B+
Cheapest Retailer
-
$10,847 AUD
CA$10,583 CAD
Most Expensive
B
Blue Nile
19550346 · Oct 31
$24,336 AUD
$17,095 USD
View
1 more retailer has this diamond
Prices start from $10,847 AUDSave up to $13,489 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.

B+
15.09ct Round
$10,847 AUD