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Princess|Natural|GIA

3.17ct K SI1 Princess Natural Diamond

EX • K/SI1 • GIA 1218831518

Certificate GIA 1218831518

Diamond specifications and retailer prices

From £11,297 GBP
As of November 4, 2026
Save £8,423 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £19,720 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.17ct natural princess diamond

This 3.17ct natural princess sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1218831518. Listed at 5 retailers as of November 4, 2026, with prices from £11,297 to £19,720, a £8,423 spread on the same certified stone. MOH London lists it at £19,720. 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

3.17
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1218831518
Dimensions8.30 × 8.11 × 5.85 mm
L/W Ratio1.02
Top View
8.30 mm8.11 mm3.17 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1218831518
Side View
Table 71.0%CrownGirdle: Very Thin - ThickPavilionCulet: NoneDepth 72.2%

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: Nov 4
Current: £19,720 GBP|Low: £11,297 GBP|High: £20,011 GBP|Avg: £14,798 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£11,297 GBP
Retailer 5£11,704 GBP
Retailer 3£13,051 GBP
Retailer 2£15,274 GBP
MOH London£19,720 GBP

41 data points across 5 retailers

5 retailers£11,297 GBP to £19,720 GBP

A
Cheapest Retailer
-
£11,297 GBP
A
Retailer 2
-
£11,704 GBP
View
B+
Retailer 3
-
£13,051 GBP
View
B+
Retailer 4
-
£15,274 GBP
View
Most Expensive
B
MOH London
6C26D84BE · Nov 4
£19,720 GBP
View
4 more retailers have this diamond
Prices start from £11,297 GBPSave up to £8,423 GBP

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
3.17ct Princess
£11,297 GBP