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Round|Lab Grown|IGI

15.32ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG31768018

Certificate IGI LG31768018

Diamond specifications and retailer prices

From $11,507 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $11,507 USD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 15.32ct lab-grown round diamond

This 15.32ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG31768018 or 31768018. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

15.32
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG31768018
Dimensions16.05 × 16.15 × 9.77 mm
L/W Ratio1.01
Top View
16.05 mm16.15 mm15.32 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG31768018
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $11,507 USD|Low: $5,255 USD|High: $21,020 USD|Avg: $11,215 USD|-45.3%
Blue Nile
Retailer 2
July 30, 2026
Retailer 2$5,294 USD
Blue Nile$11,507 USD

19 data points across 2 retailers

1 retailer

B
Blue Nile
18771597 · Oct 31
$11,507 USD
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B
15.32ct Round
$11,507 USD