Princess|Natural|GSI

3.18ct J SI1 Princess Natural Diamond

ID • J/SI1

Diamond specifications and retailer prices

From $29,875 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $29,875 USD at Shane Co
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 Shane Co

About this 3.18ct natural princess diamond

This 3.18ct natural princess sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GSI. Listed at a single retailer as of October 30, 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

3.18
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGSI
Dimensions8.17 × 8.04 mm
L/W Ratio1.02
Top View
8.17 mm8.04 mm3.18 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGSI
Side View
Table 77.0%CrownGirdle: MediumPavilionCulet: NoneDepth 71.0%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $29,875 USD|Low: $29,875 USD|High: $31,480 USD|Avg: $30,678 USD|-5.1%
June 18, 2026
Shane Co$29,875 USD

2 data points across 1 retailer

1 retailer

C
Shane Co
26E05LG · Oct 30
$29,875 USD
View

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.

C
3.18ct Princess
$29,875 USD