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Princess|Natural|GIA

1.51ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 6565155424

Certificate GIA 6565155424

Diamond specifications and retailer prices

From €3,613 EUR
As of November 6, 2026
Save €980 EUR (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,593 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565155424. Listed at 8 retailers as of November 5, 2026, with prices from €3,613 to €4,593, a €980 spread on the same certified stone. Blue Nile lists it at €4,593. 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565155424
Dimensions6.20 × 6.02 × 4.63 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.20 mm6.02 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565155424
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 76.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,593 EUR|Low: €3,354 EUR|High: €4,630 EUR|Avg: €4,030 EUR|-0.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4€3,613 EUR
Retailer 5€3,713 EUR
Retailer 3€3,861 EUR
Retailer 6€3,993 EUR
Retailer 2€4,067 EUR
Retailer 7€4,175 EUR
Blue Nile€4,593 EUR

46 data points across 7 retailers

8 retailers€3,613 EUR to €4,593 EUR

A
Cheapest Retailer
-
€3,613 EUR
A
Retailer 2
-
€3,713 EUR
View
A
Retailer 3
-
€3,861 EUR
View
A
Retailer 4
-
€3,993 EUR
View
Final sale: no returns
A
Retailer 5
-
€4,067 EUR
View
A
Retailer 6
-
€4,175 EUR
View
B+
Retailer 7
-
€4,565 EUR
View
Most Expensive
B+
Blue Nile
30112509 · Nov 5
€4,593 EUR
$5,128 USD
View
7 more retailers have this diamond
Prices start from €3,613 EURSave up to €980 EUR

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
1.51ct Princess
€3,613 EUR